What specific use do you plan t use a 6 core cpu for? There are not many. I see no "future proofing" there.
In order to get 6 cores, you will give up clock speed as a rule.
A X4 965BE will cost you much less, and will generally perform better in games. http://www.anandtech.com/bench/Product/146?vs=102
With the highest end AM3 currently with current pricing there is only 2 logical choice for me
2. 1055T + aftermkt HSF + clock a.s.a.p
In summary: 1090T if u can pick up OCing isn't worth it with the premium paid over 1055T
That said never undestimate the impact of a nice juicy LCD on the sheer enjoyment levels of using the rig hehe So at a somewhat healthy budget i would hit at least a Full HD 23" U mentioned no CF? Then why pay for 8/8 + IGP with the 890GX?
Well i suggest you buy the DVD-RW i posted, better RAM because they are CAS 9 from what i see, the case i do not know and xfx PSU i can not give any negative/positive thoughts. I hope i did not messed you up.