It's me again with another question for you knowledgeable folks. I am considering upgrading my video card.. I have a GEFORCE 2TI from visiontek and I am looking at the GEFORCE 4 TI 4600.. My first question is will I see much of an improvement and also why is it that I found a PNY GEFORCE 4 TI 4600 for 239.00 dollars and a visiontek GEFORCE 4 TI 4600 for 339.00 dollars? What makes the 100.00 dollar difference? They both have 128MB DDR ram. Once again any advice would be greatly appreciated.