I've been doing a lot of research over the last couple of weeks and I'm just about ready to make a purchase I think, but I thought that I would check here first. I am looking to upgrade my 4870 for improved performance in OS X and, most importantly, better gaming in bootcamp as my gaming performance is a bit sluggish on my 27" Cinema Display (I use my Mac Pro for design work, but I can't afford/don't have space for a separate, dedicated gaming machine so I use it for both!). I've looked at everything from flashed cards to jury rigged alternative PSU's for crossfire, but I think that I'm just going to end up with apples (extortionately priced) 5870 as I can't really afford to be fiddling with components that I could easily break but not easily afford to replace. The reason for the post is just as a final check with people who know better than me, to see if there are any idiot proof alternatives to the 5870 that are both idiot proof and either better/faster or cheaper? Also to check if there are any rumours of a new card from apple in the pipeline that might be worth waiting for instead? (Apple have a tendancy to wait until I make an expensive purchase before announcing their replacement for it...) If neither of these things are the case, I'll feel a bit better giving Mr. Jobs another £400 of my hard earned money! Thanks in advance!