Quote: As much as I would love going quad core, the price different is pretty substantial, so I'd prefer staying i3. Let me know what you think.
I found a site that broke this down in terms of computing power, I wish I'd kept the link. The i5 is substantially better in terms of computing power than the i3. There's about a 60% jump, and then there's another 40% jump going to an i7. As with all things Mac, the bigger systems though more expensive in original cost, are a much better deal if you break down what you're buying in units of processing power. In terms of pure processing power, the i3 is the most expensive, the i5 in the middle and the i7 gets you the most bang per buck,
That being said, there have been lots of times I bought low end Macs because I just couldn't afford anything more. It's a question of what you can afford, and how you divide your resources is always pretty much a personal decision. Only you know what you'd have to give up to move up, and what that would mean to you.