While I've got the power to reopen it unilaterally, I've answered the question, and I think I'd like to take the opportunity to bring this up on meta.
While in general shopping questions are off topic here - I'd like to bring up the original reasoning
OP's asked a general enough question - as opposed to asking what processor specifically they can use, they asked for guidelines in what can be used. To paraphrase Jeff "ask us what you need to learn to tell what you should buy."
That's what they've done. They've explained where the gap in their knowledge is - and what they need to know. The answer isn't a product, and can't be.
It feels like a textbook case of a good product related question.
As such, could I ask folks have a look and vote appropriately?