That's a good servo. I use it in my 4wd buggy and Mini. But, the battery recomendation isn't good. One of the biggest thigns that has made this hobby so much ~better~ are lipo batterys. He's also got a lipo charger already, so recomending a PSU, DC charger, and Nicad/nimh isn't to his advantage.
... I didn't recomend a servo because I was under the impression they were buying from the local shop.