MacBook Air VS MacBook Pro

[Jarhead5811]

I've been using PCs for eighteen years but over the past few years having Apple products, an iPod, iPod Touch, iPhone 4 and then an iPad 2. I've come to dream of owning a Mac. Now, I'm sitting on the fence on which to get.

I'm not a gamer and don't intend to do any heavy video editing. I do have a year old six core AMD (16 GB RAM) PC that acts as a Home Theater/Home Server for occasional heavy lifting and storage (it backs up to Carbonite as well).

These are the two I'm considering:

13" MacBook Pro
2.8 GHz dual core i7
8 GB RAM
750 GB 5400rpm (which I'll surely upgrade to SS when 512GB, or better, when they get more affordable)
$1699.00

or

13" MacBook Air
1.8 GHz dual core i7
4 GB RAM (Not upgradable)
256 GB SS HD
$1778.00

Any thoughts?