Anyway, it's a Dell C521, AMD X2 3800+, 2 GB RAM, 250 GB SATA HD, ATI X1300 w/256 MB. (Other details available on the Dell web site.)
I'm just in the process of installing FC6 on this system. Started from the re-spin DVD followed by a full yum update. Currently running kernel 2.6.20 64-bit build 2933.