I love my AMD 4800+ Toledo that is overclocked to 2834 MHz, BUT . . .
If you are going to buy this and run it at spec speed, or just slightly OC it, than this is a great deal.
OR, if you have a big investment in a 939 Motherboard, and 184 pin DDR RAM , and just want to kick up your pc, this is a good deal.
However #1 - If you are looking to Overclock, do your research, the Opterons are much better at overclocking than the X2's. Supposedly they are the same silicon, and the chips that pass all the stress tests, become Opterons, and the ones that do not pass all the advanced stress test, but still pass all the standard tests, are labeled X2's.
However #2 - If I were buildig a system today, I would much rather have a Core 2 Duo (C2D) from Intel. Supposedly even long time AMD fans are favoring the C2D chips, they seem to Overclock very well!
I guess that there is a "However #3" too! One might wait until AMD pulls out whatever chip they are going to bring out to "trump" the C2D chip.
I upgraded my AMD socket 939 3000+ to an X2 4800+ dual core, and am very happy, because all I had to do was buy a chip. (Love that DFI nF4 LanParty Ultra-D motherboard!)