Tiger, I had a few years "Cutting my teeth" with CFS2 on a lowly p200 with 128MB RAM & initially, a single Voodoo2 16MB Card!
It ran very well (considering minimum requirements were 266mhz!) and I posted more screenshots with that pc than my current one! (ahh, the days of free time ::) )
Don't give up on your current setup for CFS2, but a budget of $500 should go a long way to improving things! ;)