New computer -- upgrade internal drive vs add external?

My laptop arrived yesterday.  I'm switching from a desktop to a laptop as my primary computer.  While my old computer has a 1000GB hard drive, my new one has a 320GB one.  Apple charges a frighteningly inflated amount for a slightly larger (500GB) drive. 

I currently have around 800GB of data, only 100GB of which is movies and music made by other people.  I seem to have generated a lot of content myself.  

I could go the route of figuring out the most important ~250GB of my data and putting that on my laptop, with the rest stored on an external drive.  Or I could upgrade (for only $100, it appears) to a 1000GB drive in the laptop and just copy everything over.  Is there any reason that I should not just upgrade the drive in my laptop?

Quick survey: Do you see obnoxious livejournal ads?

Hi all,

I've received several reports that people have to look at obnoxious ads when reading this blog or posting comments.

I don't see any ads.  I don't know if that's a function of me having a paid account or of firefox's foxy ad blocker.  However, the idea of me paying $25 a year to host a blog that's serving fullscreen ads to people who look at it just seems wrong.  

So please let me know if you see ads and whether you have no account, a free account, or a paid account. 

If this is annoying enough people, it might be time to finally move over to wordpress for public posting.