Actually I am 50/50 between old school industrial (Skinny Puppy/Front 242) and indie rock along the lines of Jesus Lizard, Big Black. Production wise I'm probably someplace between Steve Albini, Dave Ogilive and Mutt Lange.
First off I'd say that it is important to be selective with the bands that you work hard for. Some bands are literally a paycheck and others you will end up doing a lot of pro bono work on for little pay. Find a band that you like their sound and work WITH them to develop their songs, sound and style. Not every band is, by the way, happy to have someone coming along to critique their material even for the purposes of making them sound better (by your estimation).
Once you find that band focus in on them and tighten the songs up. Make them be selective and spend time on only their best material. This is really important because if you don't have good songs everything else is a waste.
By the way, there are tons of good bands out there that don't write good songs. Be very careful.
As far as the production part goes you should strive for the most professional equipment or studios you can record at within the confines of your budget. Once you track the songs and get it all recorded mix it up. My only advice is don't make it TOO slick or polished sounding. Make it sound professional but with a raw quality to it that keeps the life in the songs.
Generally if your mixes start to get that Bon Jovi type sound you've gone too far.
As far as my mixes go I tend to put some additional emphasis on the overheads and room mics to give a more live ambient quality to the sound. We're literally talking about a minor adjustment less than 1 db over what I would consider the "safe" level of -6db for the OH's/room mics. This makes things sound a bit unpolished and mean.
When I say unpolished I don't mean leaving in stuff like hiss, 4 counts, guitar noise and so forth--I get rid of that stuff. I try to record a band to sound like their ultimate live show in a small to medium sized club. And then I add some fancy stuff real subtly.
I'm almost done with my latest project, I'll link it from here. We decided to re-record the main vocals because some of the lyrics changed.