I use a Behringer B212A. I also use a Variax for acoustic sounds. That's mainly why I went with a powered p.a. speaker. Plus, I sit it on the floor in front of me on three stage next to the other monitor. That way I not only hwar my guitar well, the sound guy has all the control he needs since he doesn't have to compete with a loud guitar amp.

For a REALLY nice speaker, the StageSource seems to be the ticket. Question is, do you have 1200 bucks to cruise through?

There are other options out there. QSC K-series, Mackie Thump, Atomic amps...

What is your budget?

I've been using Seismic Audio stuff for years and have never had a problem with their stuff. VERY cost effective, And the support staff is amazing. Only time I have ever had a defect (a broken tweeter mount on a floor monitor) they sent a replacement with just my word and an emailed photo. Hell - these guys customized a cab for my guitarist that sounds better then some very pricy stuff.

Would look at one of ther 10" or 12" molded cabs (they have angled surfaces that work well for floor monitors) and get away with about a $200 investment rather then paying big $$$ for some big-brand's advertisement budget.

http://www.seismicaudiospeakers.com/Powered-PA-Speakers-s/282.htm