>>he other day I saw a lower-priced PRS line and found the hollow body to fit very comfortably and, while I only played it unplugged for about two minutes, liked it very much.<<
Thats the best way to do - see if it talks to you.
Go back to the shop and play it over an amp, similar to yours.
If you still really like it, don't buy it yet, but ask the salesman to keep it back a few days.
if feel good about it - take her home
I can't say much about Paul Reed Smith guitars, haven't played one.
I'm more the Telecaster man - so I'm a bit biased
have you ever thought about a Telecaster Thinline?