Now you've got me worried...
You say you returned the hi resolution screen because you couldn't read the text?
I've also ordered a HI Res screen (still waiting, of course)
Don't tell me there isn't a font size adjustment in OSX...!?
My first "Apple experience" is getting better and better!
There is font-size adjustment and to be honest I love the hi-res in the store, had no problems reading it. But some people don't feel so comfortable with hi-res regardless.
My old Dell was a 15.4" 1920x1200. Sure the Dell was crazy but my eyes adjusted to it within a few days and looking at the Fisher Price resolution on the previous-gen 15" MBPs was awful so I had to buy the 17" just to get the same res.