hello to all i am new here and i know you all have alotta knowledge which i will use. my question is I'm building a mac pro early 2009 single quad core. i am using Processor Board Quad-Core Without Processors for Mac Pro Early 2009 661-4999 and want to ask which back plane should i get Backplane Board Version 2 for Mac Pro Early 2009 661-5444 or version 1?? the thing is i do not know which processor i should get i want it to be hassle less and compatible with the system i am building which is the best processor bang for the buck and are their to choose from? thanks in advance guys