Mac is overpriced garbage. You should buy a Mac if you want to seem fashionable, or you think it's worth it to pay double the price for a machine that does the same thing as a PC. There's no need to switch to a Mac OS if you've been using WIndows and might have compatibility issues with a Mac, there's simply nothing that a Mac can do that a PC can't that would justify that sort of a switch. Why buy a Mac if you're just going to run Windows? I see people with Macs in law school who run Windows, what's the point? Macs are much more expensive than PCs and they do the same thing. Of course if you like spending more for something that does the same thing because you like to seem like you're fashionable or "different than everyone else" by all means get a Mac.
I just bought an Asus laptop and it's got a lot of bang for its buck.
http://www.newegg.com/Product/Product.aspx?Item=N82E16834220167I looked around a lot before I got my laptop and I would advise you to stay away from Dell's, most of them are pieces of junk. HPs are supposed to be very good that's what I would have gotten if I didn't get my ASUS.
Here's basically what my ASUS has:
15.4 widescreen bright display
AMD 64 bit 1.8X2 GB processor
2 GB of DDR2 ram
GeFOrce 7600 256 MB video card
160 GB SATA HD
Bluetooth, webcam
awesome build display, really rigid keyboard
DVI and S video out
I got it for 1030, the link I gave you is basically the same thing but with a 17 inch widescreen display for around 1100 bucks
Personally for me the 17 inch is too big and I think the 15.4 widescreen is perfect