For reference, here's the gray one I looked at with the 19's...
http://i.imgur.com/nCP83r2l.jpg
And here's one with the 20's...
http://i.imgur.com/drHN4g6l.jpg
I thought about just buying the gray one and getting a set of factory 20's online, but searching at the time I couldn't find anything cheaper than $500/wheel, so I said F that.
Also, they don't come with spares, but there is a company that makes an 18" spare (big enough to clear the Brembos) that fits in the trunk, and it's pretty cheap. Just food for thought since you'll be using the car as a daily.