Hello All, I'm trying to set up my brother's computer for him, and own both retail copies of OS X Tiger, and Leopard. The iMac has a 128MB Video Card (ATi X1600 I think) as well as RAM that I installed to take it to its maximum, 2.5GB. It has a new high speed seagate black 500GB hard disk installed (by me) I'm wondering the best operating system to install, features are not really that important to me. What the computer is used for: Web Browsing Apple Mail Microsoft Office 2008 Adobe Photoshop CS3 Gaming (Older PowerPC games like Star Wars KOTOR, and a few racing games) iTunes w/ 32GB Libray (Including the Occasional rental and all the movies) I'm wondering which OS would provide the best framerates, and general performace on this aging but still great mac. Thank you for your time.