Sorry if this has already been posted...im a noob and im trying my hardest to research this stuff....my phone is rooted and i have the froyo rom on my captivate...but im wondering how i put a custom dockbar(like the HTC format) and custom icons/wallpapers on my phone...any advice would be great, thanks!
Well, the best place to look for icons and such would be in the main forums, Android, Android Themes. Just find the icons/dock backgrounds you like and make a folder on your SDcard and copy them to that. Then launcher pro lets you change icons and dock backgrounds pretty easily.
As for full themes, look in the Captivate / Captivate Themes and Apps section. There are a couple Metamorph themes right now, which will require you to download metamorph from the market. Also, in the captivate section check the post your homescreens thread and ask questions if you see a screen you like.
Good luck.