Im not a genius with this stuff.
But i was told by the man who built my machine that My motherboard cant support any better video card than what i currently have. (with the exeption of some sort of lesser quality 128mb card)
Games like the ones I mentioned in my original post need 256mb if you want decent quality.
I cant really explain any better than what i was told =P
Anyways.. on the good side. Ive been offered a job by an exterior design and advertising company to work for them for this year.
They hired me because i have alot of photoshop and adobe experience on my resume. for a 15 year old.. this is a dream. Ill be working 15 hours a week at $18 per hour

This is
More than enough to finance my new computer :-)
Ill put together a new slightly modifified build with an Nvidia card, and better mobo. maybe some of you experts can check it out for me?