Money isn't a problem, I got almost $30k, however my goal was to just get 1 ghash/s for around $500. Would it be better to buy the most expensive cards possible? I thought gpu mining was almost obsolete and it wouldn't be wise to invest so much in it. I just wanted to spend a few hundreds bucks and mine for fun instead of having my laptop that I use for school run 24/7 mining 30 mhash/s.
Never use a laptop to mine - unless BTC jumps to $500K at the current difficulty. Not worth killing a laptop for 10-20c/day
GPU Mining will probably be dead for anybody paying electricity in 2 months, maybe sooner. If you want a new video card just buy a few nice ones (locally to avoid ship times), and start mining today. Waiting on extenders to be shipped (even within the US is 3 days loss of mining) and when earnings are counted in days left that's a lot. Once Avalon gets batch 2 & 3, BFL ships Batch 1, and ASICMiner upgrades to 50TH it's game over unless BTC compensates to $1500 or something ridiculous like that.