Well for basic usage "web surfing, email, word processing" any of the processors should be fine. The core2 will do a lot better with "photo work, video editing, gaming, etc. I personally just purchased the same Lenovo @ Officedepot with the Intel Core 2 Duo. Its on sale for $699 with a $130 mail in rebate = $569 which imo is a steal. Battery life is not stellar but average. I get about 2 1/2 - 3hrs doing basic things with the brightness a few notches down. Thats with wifi on.

I say go for it. Its a great machine! Good luck!