1st- The Intel Xeon family are dedicated for servers
2nd- For 3D modeling I recommend you a i5 or a AMD Phenom
3rd- Xeon is not for overclocking (personal XP)
4th- It costs a lot of money
Im not a AMD fan. But this is not the processor you need and AMD wins Intel in multimedia.
Benchmark 7648 - Intel Xeon X5650