erm, i would never ever buy a macbook...
macbook pros are good, but never a macbook... has anyone seen the screens they use? i mean i love macs right, honestly, i've had an iBook 12" 800MHz and then got an iMac 20" 2.16 Core2Duo (was the last "white" iMac released) but honestly, I wouldn't get a Macbook AT ALL or any of the new iMacs except the 24". I've seen all the new iMac's screens and they're low quality except for the 24" (i.e. 6-bit screens with dithering and whatever, looks ugly as hell... also they have 2 backlights at the bottom, instead of 4 like the old iMac, and you can really notice the uneven lighting on them)... but the 24" as far as I've heard isn't so bad
as for the Macbook, well my friend, medicine student, bought a white one, and the screen on that is POOR, and my other friend, she's a solicitor, bought a black one and the screen on that was also poor... i'm disgusted at Apple really... my old iBook 12" has better screens and it was the entry level monitor!!! this was the Blackbook so it was the best in its range and the screen was poor! what the hell is going on?!?
really, honestly, dont get a Mac unless it's a Mac Pro, or a 24" iMac (im even a bit unsure about this, never seen it for myself)... but in your case you want a laptop, dont get a macbook... maybe go for one of the first gen MacBook Pros that are refurb from the apple store... should be around the same price...
I'm honestly honestly not trying to make Apple look bad, or fool you, it's not to my benefit lol... but really really honestly I can't stress more, don't get a Macbook... please... seriously...
If you get a first generation refurb MacBook Pro, or maybe a second hand good condition one off eBay then you'll be happy... try to get a Core2Duo version if you can, but the Core Duo isn't THAT bad... honestly... if you've got the guts and dont mind about warranty, then replace the thermal paste with Arctic Silver 5 as well, it will REALLY REALLY help... the first gen MacBook Pros are known for having very high heat... also another issue they have is that their GPU is set to a lower clock speed in OS X (although you can overcome that with a utility once you've changed the thermal paste)...
i change thermal paste on laptops all the time, i even done my iBooks one (those are much harder to open than macbooks/powerbooks)... so it shouldn't be TOO much of an issue if you're familiar with it
but otherwise a mac is really the best laptop... software updates, firmware updates, everything taken care of you... nothing for you to worry about
best of luck... watch how people disagree with me now!!! lol