Radeon HD 4770 512MB Core 2 Duo E8400 @3.0GHz 3GB Ram Windows 7 Home Premium Samsung SyncMaster 2494 24" HD monitor
I played at the highest available resolution in Halo CE, which is around 1600x1200. Vsync (60FPS locked) was enabled in game and Fraps recorded in half-size at 60-FPS in a 4:3 aspect ratio (sorry I don't know how to record in widescreen with Fraps). All settings in game were maxed, but no extra AA or AF enhancements were enabled in Catalyst Control Center. The game looks absolutely gorgeous for its time, and for me still looks like it could pass for a brand new game today!
Maps: Blood Gulch Hugeass (download map at http://idk.li/Sd and put the map file into the map folder in the halo ce program files)