LOL steam can run on a 8MB video card(oh yes i have tryed, used to run DoD n it, untill i got my 16MB from my other Pc, then got my 32, then 64, and now 128), its the games that require more, and my MX440 128MB's can run all the games on my list which is all the steam games except Rag doll kung fu, which includes me playing half life 2, and CS:S, on meduim or high settings with no lag, people overrate video cards, i can get 40-50fps on most games and another 30-60fps on that wont really do much s i dont care, although i will be gettign a new video card from the FX sereis just for the shader technology for some of the games that requir it(not on steam)
and yes its DX9 compatible, steam is just dumb.
Notice thats just the recomened requirments anyways.