If you really want to jazz up your finder and “supersize” your icons, open your terminal and enter the following command:
defaults write com.apple.finder DesktopViewOptions -dict IconSize -integer 128; killall Finder
Replace 128 with the size in pixels you’d like to set as maximum as high as 512, but becareful not to push the limits of your hardware as it can be very taxing on your system so proceed with caution
To add a nice hover effect to the icons in the stacks pop up enter the following code into your terminal ( applications/utilities/terminal.app)
defaults write com.apple.dock mouse-over-hilte-stack -boolean YES killall Dock
To Remove this Stacks hover effect enter the following terminal command:
defaults write com.apple.dock mouse-over-hilte-stack -boolean NO killall Dock
Here’s a preview of the magic at work.It’s also important to note that this only shows when you navigate your stack pop up by keyboard.

If you would like to set a specific icon for each stack instead of the default stack pile of icons, Stacks in Da Place from Eagle-of-liberty was developed with you in mind, It’s a great little piece of donationware that lets you use any icon you want for any stack, easy as dragging and dropping the icon you want.

Download Stacks in Da Place at the developers site - Click here to Visit
If you find your Leopard dock a little messy, Here’s a tip that’ll allow you to add spacers to the dock to seperate your apps/documents into groups on the dock.If you’d like a space on the left or application side of the dock, Open terminal (~/applications/utlities/terminal.app) and enter the following command:
defaults write com.apple.dock persistent-apps -array-add '{tile-data={}; tile-type="spacer-tile";}'
If you’d like to add one to the right or document side of the dock enter this command:
defaults write com.apple.dock persistent-others -array-add '{tile-data={}; tile-type="spacer-tile";}'
To see your changes you’ll also need to restart the dock by entering the command:
Killall Dock
Afteryou’ve done this once, you can drag the spacers where ever you’d like and even create more by simple entering the same commands into terminal over again.To remove the space, simply click and drag the space out of the dock like you would any other application or document and ” poof ” it’s gone.
Apparently
wordpress was playing a few games on me in this post .. It should be fixed now, Sorry for the confusion folks.
If you’re looking for a way to remove the 3d styled dock from leopard, Here’s how you do it
First open terminal and enter this command:
$ defaults write com.apple.dock no-glass -boolean YES
To change it back simply enter :
$ defaults write com.apple.dock no-glass -boolean YES
Then Type:
killall Dock
The dock will then restart with a new 2D style dock similar to that of Tiger, but slightly better looking in my opinion.
If you’re not up for entering terminal commands and would like to achieve the same thing you can also download the DockDoctor widget from innermindmedia and it’ll let you toggle back and forth with 0 effort right from your dashboard.

I find Leopards new Stacks feature incredibly useful, and fun to watch at the same time! Here are a few tweaks to help you make the most of stacks.
You can add a ” Recent Items” Stack to your dock by entering the following in terminal ( You can find terminal in /applications/utilities )
defaults write com.apple.dock persistent-others -array-add '{ "tile-data" = { "list-type" = 1; }; "tile-type" = "recents-tile"; }'
Once the stack appears you can right click it and select its type, and a few other features. To add a nice hover effect for the icons in a stack when expanded, Enter this line into the terminal
defaults write com.apple.dock mouse-over-hilte-stack -boolean YES
Type the same, with NO at the end to reverse this effect.
If you don’t like stacks and the reduced folder browsing capabilities, you can download Quay, Developed by Rainer Brockerhof, It Allows you to add your drive, or folders to your dock and browse them via a menu just as you would in OS X Tiger.

Alot of People don’t seem to like the new dock in OS X leopard, I however think it’s great, but needed a few changes, or at least a way to change it around and modify it.
I created this neat little piece of software called DockDR that enables you to do just that.
With a few clicks you can change the docks dimensions and even swap between 8 different dock skins without having to mess around in system folders or settings.
You can also Disable Dashboard and adjust Icons settings, Check it out at www.innermindmedia.com
You can find DockDr at www.innermindmedia.com , There is also a widget version that allows you to toggle between 3D and 2D dock styles.