I want to update my video card from what I have now which is I think only a 4x agp card. I was looking at prices and alot of the 256mb/8x agp cards are more expensive than the 512mb/8x agp cards? Why is this? Is having a 512mb card not better than having a 256mb card? I do play games quite ofter so I want a good card a but I also do not want to break the bank, otherwise I would get a new mobo, processor and go pci-e. Any help on which is better and why the price differences as well as some suggetions wouild be greatfully appreciated. Thanx.