FWIW, I just ordered a refurb 2010 2.4 i5 even though I had my sights set on the 2011 model. I think the graphics on that are going to work fine for what I need it to do (i.e. Not much gaming) and I saved a considerable amount of money even though I got the high-res anti-glare display. Also, I ran WoW on my Mac Mini with the 9400m just fine, so I think the dedicated graphics will suit me fine. If you don't do much modern gaming, I would say buy whatever your budget allows.
Also, this way, I will have a little leftover cash in case the 2012 MacBooks are redesigned and I can't resist them...haha.