ok got it,That's a unique requirement. Yes, core i5 is the most VFM way to go. Desii's config is nice. For PSU, have a look at Seasonic S12II Bronze 500W @ 5k (3 year warranty) or Corsair VX550W @ 5.8k (5 year warranty). Both are great brands.
what with my selection, as I dont want to go under run very soon, as with present set up with old 915 board and fit for nothing 2.8 gz cpu, however when I bought this it was not for studio set up.
so some solid rig for 3-5 years,I dont want any performance lag while working, live.