For myself opinion I nt recommend fx 4 series is ratherjust get phenom II x6. This series seem more reliable and should be satisfied ur need. And u can useleft money get better gpu. Ati 7850 oc is big improve of ati 7770.

What os are u using? If I m nt mistaken win 7 itself will almost use ur 1gb ram so u left 3 gb ram and for multi tasking purpose I m afraid it will later occur lag problem for my self experience when open 10 over Web page system is already lag . After that I am too frusgated on the lag so I straight change to 16gb ram and all problem fix