Hey everyone - will be ordering a 2011 iMac SSD within the next few days but need a little help. I plan on running two additional monitors (23" each) via Thunderbolt and want to make sure I will have enough VRAM. I was planning on getting a 27" 2.7 i5 with 512MB because I don't do really intensive stuff, just lots of apps, internet, etc (no gaming). Any reason to believe I would need to upgrade to 1GB? I know some will say YES to be safe, but honestly, any reason I NEED to do it? I've been running one extra monitor on my 2007 MBP with 128MB no issues for last few years. Thanks guys!