Guys, I've mentioned this countless times ... this is a post on the NVIDIA board. If a user is asking about nV options on the nV board, please do not chime in with 'why don't you buy AMD?'.
This is how flame-wars start.
@OP: the only sound reason to get a 4GB version of these cards is if you're going to run SLI, AND run at 'surround' resolutions. Otherwise, 99% of the time (as in, there's a couple games that if you deploy hi-res texture mods, you might see a difference in perf between the two) it's money down the toilet, as there's no (literally zero) actual, practical benefit to the extra vram. Thus, 99% of the time, getting a higher vram card is nowhere near as effective as getting a SLI setup ... of course it's also much cheaper cause it's only one card, but ... 99% of the time the 2GB card is going to perform identically to the 4GB card unless you're running Surround resolutions ... and in that scenario you're going to likely need 2 of 'em to have a high enough framerate.
Also, there's really no such thing as games 'not liking SLI' (games don't even know about SLI, nor do they care), nor do intel chips 'like' nVidia cards 'better'. Just letting ya know