Good price on that CPU! TR listed a similar (slightly slower version) in their "alternatives" section on the next page.
"The Athlon X2 5200+ likely outruns the Pentium E2180 in our primary config overall, but we find the socket's upgrade path considerably less appealing. Still, the Athlon is a decent choice for folks who don't overclock and have no interest in upgrading to a Core 2 Quad CPU down the road."