A MacBook Pro
They may be pricey but however, it's totally worth it. It would probably be the only $1,200 or more that you will ever spend on a laptop.
Here are reasons why:
Mac OSX does Not Get Viruses. It HAS in the passed, but very fast, reported and notified to Apple. They then patch it, and it has a clean slate as before :)
Firewall is very, very hard to bypass unlike Windows.
Mac is portable, 11-inch MacBook Air :). Unlike WIndows again...
Mac doesn't crash like Windows. Mac does its job, and finished it. Unlike Windows which unfortunately crashes or can't run a certain process.
Depending on what Manufacture you buy a Windows, Apple has a better Consumer Report, IMO. They respond with great authority, and know what they're doing. For like HP, You have to call India which you would have to spend to call another country :(( = More money!!!
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I am not saying Windows is bad, but, Macs may be pricey, but it's totally worth it. Windows is okay, but it seems like to me that Windows is getting slow on marketing. Haven't you seen what Apple is coming out with? A new MBP may be coming out in 2012.
What's coming out for Windows? : Windows 8. But, it's a little more memory and you can "Switch from different UI's" but I don't care lol.
Windows is okay, but to me, Apple has more advantages.
Go with a Mac.
Just remember, this is only my opinion.