I'm mainly bothered about TF2 but I'm sure 99% of the commands apply to other source games
Currently using a config from here, http://fakkelbrigade.eu/chris/configs/ but it does make my game look a bit rubbish (DX8.1) and certain things like the alien hat have this weird yellow effect which looks totally out of place. Most of the high fps configs seem to make things like ubers look absolutely rubbish.
I've tried just using default settings (some stuff on high, some on low) but because I like to run it at native resolution, 1680x1050, it's hard to maintain a decent FPS. Especially when playing on a 32 player server with loads of stuff going on. It'll drop to somewhere around 20fps and it's almost unplayable.
So if there is such a thing, I'd like to make the game look pretty decent but maintain a reasonable level of playability.
My relevant system specs - i know the CPU is a bottleneck;
AMD 7750 Dual core
Sapphire ATI 5770 (512mb)