Hey,
I've seen a lot of screenshots of various linux distros running GNOME with a nice taskbar that is not the default one, some may look like vista style, others like OS X style.

and saw somewhere a taskbar that looks like OS X launch bar (or object-dock for windows).

Where can I find these little eye candies and how can I use theme?
'cuz I didn't find any of that on GNOME/KDE-look.org ....

Thank

beryl.org

For the object-dock type application you need to have either Avant Window Navigator or Kiba-Dock, and for the window title's you need to get Beryl, Compiz or Compiz-Fusion

To get Compiz-Fusion installed the best place to look for a how-to would be here.

Note that you need either beryl, compiz or compiz-fusion installed to use either of the dock programs.

Thanks, I have Compiz-Fusion installed, and it runs great at the moment.

Will try both Avant and Kiba-Dock.

P.S.
What's the difference between Beryl, Compiz and Compiz-Fusion?

Well compiz started it all, then some of the developers of compiz had a small disagreement about something and forked the code off and started beryl. Now they have reconciled their differences and joined the forked code back together to make compiz-fusion.

this is good information to have, heavily into modifying my desktops!

What about Emerald?

download it on the original Beryl website