Yeah thats what I'm worried about my own self... my video card not being able to run SH4 when I get it. I will tell you I found some great info and tutorials in the download section -
http://www.subsim.com/radioroom/down...hp?do=cat&id=2 - and I was lucky enough to snag some tutorial videos off of filefront before they shut down... oh wait, one of them is here:
http://www.subsim.com/radioroom/show...=112591&page=4
Hope it helps.