My 2 cents from a working musician's standpoint.
If you have anything smaller than par56s or large washes (not color changers) for fills, your setup will look rinky-dink compared to what most working bands already own themselves. Even 32 par 36s still looks like a whole bunch of little lights on a stage. You didn't say what you originally built your system for, but it sounds more like a DJ setup than a live band setup. Most bands will tire of a DJ light show real fast. Personally I hate stage lighting that is constantly blinking all the time while I'm playing (guitar/voice). Most lights do that themselves and don't ask for $300 night to do it. I want to see dramatic scene changes that take the audience by surprise and enhance the music, not just constantly flash for 4 hours to the beat. That's fine for a birthday party or DJ/Dance-club, but bands have little use for that kind of show. The only way to really cover a stage in color is either a gazillion little lights (PITA to set up) or up the pars to 56 - or go with the newer type DMX 900W+ Stage Washes.
My 3-piece rock/blues band uses the following at many of our gigs:
16 par56/300w wide floods
12 pin spots
4 Pocket Scans
5 250W Color Changers
2 1500W Stage Washes (front)
2 1000W strobes (back)
8 little 'egg' strobes (hung above us for SpecFX)
Fogger
(other brand) DMX board w/ MIDI foot controller so I can run the lights easily onstage.
6 trees all w/ crossbars on top, 60 feet of flat 1 foot truss + a 10 x 20 foot aluminum 1ft tri-truss rectangle with tri-truss corners that we fly for outdoor shows & large rooms.
Enough heavy black muslin to completely surround the stage for a backdrop and side curtains.
Of course if we're playing some joint that only holds 150 people standing up, we'll go with the 2 1500W washes in front & just put them on slow cycle, hang the backdrop on flat truss & be done with it. 90% of bar gigs pay $600 or under and you'd be the world's best salesman if you convince many bands that they need to give you half or more of what they make for your light show alone. You never mentioned a PA so I'll assume the band has to provide that themselves or use a house PA (they're junk more often than not). If they have to rent that in addition to your lights, they see the math as :: You make $300, the Soundguy makes $300, they get free beer and have to pay gas and everything else to play + still have to come up with 20% to pay the booking agent for the gig. Pretty tough sell!
In Wisconsin, light shows like mine are what lots of working bands own themselves and if your setup looks like a DJ setup, bands won't want to rent it at all, much less pay $300 for it. There are several companies that rent production (full production) around here for $500/night and they show up with 2 guys in a 24 foot truck, not a guy with a minivan.
Tuckersound also made a great point - professional cases and transport equipment. You show up with a bunch of Home Depot Tupperware and you likely won't be asked to do anyone's next show. Even my little old band has everything in Anvil or similar. I've been doing this 32 years and my stuff wouldn't last 32 weeks if it weren't for at least $2500 in cases. I've also had plenty of club owners comment on how pro we look onstage and they aren't talking about my haircut.
Customers also are a lot more likely to hang out later if they're there during load-in and they see all touring quality cases instead of Rubbermaid garden tubs.
The funniest thing I've heard recently was some drunk old chick at a bar when we were coming in with our pre-racked par56s & tri-truss:
"We're outta here! Any band with that many lights is gonna be WAY too loud!" ;D
As Flash2003 said, if you're selling yourself to bands making $1500+/night, you should shoot for about 20% of that. That's what most pro bands pay their booking company and if you're getting more than that, you're either dealing with inexperienced or very generous musicians. Most musicians are notoriously cheap and asking for half what they make will probably price you right back to your garage.
Good luck,
- JJ
http://dirty-ernie.com