Citaat:

Does anyone have a recommendation for a system (500-1000 watts) that includes amp, mixer and speakers? She performs in small (50-100 seat) pubs.




The system in your link is only 180W. Without subs you'll get a very thin sound in a crowded pub...If you can reach the audience at all.

I do a lot of those gigs you mentioned. Singing and using backing-tracks. Most of the times in pubs and clubs. Pub-gigs are very different to, say, wedding gigs. Music tends to be played louder and the kind of audience differs from your everyday wedding guests. You'll want a system that is reliable, easy to set up and powerful enough to play the room. When playing with tops only think somewhere around 800W RMS (400W/side)

How often does she play and what is her budget? If she has just an occasional gig, then hiring might be the better option for her. If she needs to buy her own, she'd better pay more cash now than regret later. (read: find out in a pub that your system is inadequate.)
Please post some more info on her needs and we'll see what we can come up with.