+1 I think it's great to get input from folks here which may narrow down your choices but, in the end, it's your ears that will and should make the final call. Everyone's choice of "the sound" they hear in their heads translates a bit differently depending upon the amp, guitar, pedals, etc. that they use. The suggestions provided by everyone is pretty universal for the 15 wattish segment - AC15, Blues Jr, DRRI, Princeton, Egnator Tweaker - all great amps with a proven history....so this gets you in the ballpark. The fact that you will definitely be using a PA puts you in a category where maybe even a 5 watt amp might work since you'll be using it more as a monitor than filling the house. Of course, "it depends" - how big is the worship team, how loud do they play, etc. We have a similar setup at church and my son likes using a Les Paul through the clean channel of a modified Fender Super Champ XD with a Rajin Cajun speaker. I use a tele or Gretsch through a Vox AC4 that I put into a 12" cab with a Celestion Blue speaker and that does it for me. The congregation hears mostly the PA so didn't have a need for a powerful amp. Another fair point is the amount of clean headroom you'll need. That may be a deciding factor for your ears as well. Good luck. It's fun to shop for gear and with the "go ahead" from your wife, seems like it'll be a lot of fun.