But the trekking bar conversion can be done for less than $50 ($22 for the Nashbar MTB Trekking Bars, and possibly between $10 and $20 for a new stem - if that's needed, which isn't certain.) Everything else stays the same, except now you have a bunch of new hand positions to use. You might want to tape the bars, but I didn't.
All good points and looks like the cheapest way to get the slight change in position he's looking for.
I converted my specialized sirrus to drop bars. There may be a thread around on it, check what thread I created.
I do recommend the +1 route, but due to some issues ("but you just got that bike last year!") I converted. Bought the bars, with brifters, used on CL.
I had to get a road front derailleur, but the existing rear derailleur was fine. I also ended up with a shorter stem due to fit issues.
If you have canti or V-brakes you will need a take-up adaptor to get them to work with road brake levers. Alternately you could specific brake levers for V-brakes/cantis and do the shifting using bar end shifters.
I've got several thousand KM on the bike since the conversion.