I am looking to buy a Dell XPS M1530 tomorrow to use (as well as my MBP) for web developement. However, they offer 2 different screen resolutions and I'm not sure which to go with. They offer 1280 x 800 or 1920 x 1200. Which would be the best to go with? Would the 1920 x 1200 be too small? Anyone got any experience using this resolution on a 15" screen? I'm just concerned that after paying an extra £200 for the higher resolution, I won't be able to comfortably use it. Also, would I notice much difference between the 2.4GHz with 3MB Cache and the 2.5GHz with 6MB Cache?