Buying A New Laptop And Need Help

Hello,

My Apple Macbook Pro has recently broken, and it will cost a lot to fix, so i'm looking around for a new laptop, this is the mac's specs

2.4ghz penryn
2gb 667mhz ram
200gb 7200prm
1440x900 15inch
8600m gt 256mb

I've been looking and found a very good (i think) dell studio 16 laptop for £829.99, these are the specs

Intel P8600 (2.4ghz, 1066mhz, 3mb)
4gb ram 1067mhz ddr3
1080p 15 inch
320gb (7200rpm)
1gb ati radeon 4670

Are these good specs for the cash? and will the graphics card be better than the 8600m gt , i cant find any benchmarks atm, so please day if its anygood. also if you know any better deals than this please say, but i like quality build, hence why i had macbook pro, so no plasticy rubbish

thanks