You say that "we" are currently using the Gibson amp. Is this just for you to play guitar, or is everyone going through this? Are you looking for a PA or a guitar amp? Just curious to clarify.
Some lighter budget options in PA's would be Kustom or Behringer, and even Carvin makes a solid mini-PA. Fender also has the Passport series. That's all pretty well self-contained.
As for guitar amps, try offbrands. They're cheap and some are weird but can be pretty solid. Drive, Pignose, Danville, etc. Again, Behringer is another great cheap brand. They use most of the same parts as higher end makes, but it just comes in a cheaper package.
_________________________
Music Gear Review - Keyboard/MIDI and Songwriting Editor/Mod
"I don't like it, and I'm sorry I ever had anything to do with it." - Erwin Schrodinger, on Quantum Physics
Keys: Nord Stage 88, Nord Lead 2, Yamaha W7
Upton Bass Custom Upright, BSX Allegro EUB, '80s Peavey T-40, MIM Active Jazz Bass, Godin BG-5, Fender Bassman 100, `68 Fender Bassman 50 head, Gallien-Krueger Fusion 550, SWR (pre-Fender) Goliath III 4x10, Markbass 2x10 Traveler