A great mail order source for computer memory is Data Memory Systems (www.datamem.com).Well I am not going to get in on the Mac / Wintel debate. I use
both at work but have Mac's at home.
As for the Price, Apple controls the price so your not going to get
a big discount anywhere.
BUT....You can do what I did, Apple sells referb machines through
the on line apple store. That is how I bought my lastest laptop.
It comes with the full warranty.
Go to Apple.com, Click on the store, scroll down and click on red
tag labeled SAVE.
http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/73104/wo/of63ZpNfGjBo3FfNBVtOBL85daD/0.0.15.1.0.6.63.0.0.0.0.0.0.3.1.1.0?85,53
The other way is to find a student or teacher that will get you the
education discount.
Two notes: 1) You will need at least a Gig of ram. 2) On
They are great for camera memory too. Much cheaper than discount camera stores (e.g. a 1GB SanDisk Ultra II Secure Digital Card is $96.50 at Data Memory Systems and $125 at Buydig).
powerbooks, I would $300 and get Apple care, it extends your
warranty to 3 years it is worth the money, though you may never
need to use it.
Greg