New Laptop for the Div: HELP!!!

[Divinus Arma]

Okay, first of all I am certainly buying a Dell Notebook. I cannot get the value that I desie with any other brand. I just get more for my money especially since a relative of mine can get me a 10% discount off the top.

I am pretty solid on the Inspiron E1505 with the followng minimum Specs:

Processor: Core 2 Duo T7200 4MB Cache/2.0 GHz
Video Card: 256MB ATI Mobility Radeon X1400 Hyper memory
RAM: 2GB DDR2 SDRAM 533MHZ
Hard Drive: 120GB 5400 RPM

I am also looking at the XPS M1210 which has the following incrases;
Video Card: 256MB Nvidia GeForce GO 7400 Turbo Cache
RAM: 2GB DDR2 SDRAM 667 MHz

I just can't see why these increases will cost me an extra $600 or so.

Is the 256MB Radeon x1400 a decent enough card? should be good for M2TW and RTW modding, right? And is the increase in MHz worthwhile for the RAM?