Hi guys, recently acquired a mid 2010 iMac 27" i5 2.8, 5750 1gb video, ram.. and loving it.. although for gaming, it's a bit slower than my i7 quad 2011 mpb was. I'm seeing i7 860 or i7 870 cpu's on eBay, saw the how to guide and feel comfortable tht I can do this. just wondering, in the end.. will I see an improvement on my gaming front? basically going from an i5 2.8 to an i7 2.8? Ive also seen the video card 2gb upgrade on eBay, but for 600$? no tnx. I use handbrake, photoshop, etc.. but mainly used for surfing and light gaming when the kids are a sleep! thanks!