Well, there isn't an exact release date set for the Toledo yet so it's hard to, I am personally hoping for July or August as that is when I would like to build.
Anyways, from what I have seen and heard, the new Toledo will basically outperform every AMD Athlon 64 on the market right now except for the 4000+, FX-53, FX-55, and any other processor that happens to be released between now and the release of Toledo.
Basically, you have to ask yourself if you want to wait for something that will perform better than a 3800+ or lesser processor.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w