Bjorn3D has put together an article that answers the age old question: Will customizing your Windows PC slow down your computer?

To find out, he loaded up Object Desktop components such as WindowBlinds, ObjectBar, IconPackager, and WinStyles and then put on CursorXP to top it off.

He then ran it thorugha  host of benchmarks comparing it to his clean setup. Benchmarks included 3DMark, PCMark,  UT2K3, and others.

The result? No discernable performance hit.  Check out the article for yourself.