I am currently waiting for my tax return and I am excited to be building my first rig. Although I do not have much to spend off the bat but I plan on investing more over time, of course pending results. I have read a lot of reviews, and got many different opinions and I am really stuck on my decision. I am planning on buying 4 cards total for now and I am wondering, is the cost difference worth the difference in hash rate. I find my self stuck because I read on some forums that some people will successfully overclock 7950's and get near the hashrate of the 280X and not have to pay for the difference. I am sorry if these seems like a stupid questions but I just want to be sure of my decisions before spending this sum of money. All help is greatly appreciated! Thanks!