Just dont be surprised if randomly doesn't turn on one day. Dell laptops have non-stop problems with motherboards.
i would go for it.. really, dells are really good and they mostly dnt carry a huge price tag. if u look for their special offers, u can get a nice offer sometimes..here in germany, i just found a core i7 for 799euros... plus their customer service is good too. first u wont get any problem and if u do, the guys will come and fix it right in front of u. yes, they'll get an appontment with u, come with tools and open it right there..