I have two currently.
Small rig: Series I Acoustic Image Contra combo that I was able to pick up used recently:
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It's great for upright and electric, and will work out well for acoustic coffeehouse type gigs and practice. Plus the setup, with a long-throw woofer and dedicated midrange, really reproduces sound well.
Big rig: Carvin B1500 head and a Carvin LsX1503 cab (grill temporarily removed):
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The more I play it, the more this rig is really blowing my mind. I sacrificed some stuff to be able to buy the cab, after reading the megathreads and after being exposed to what a dedicated midrange driver can do for bass sound (via the Acoustic Image gear). I'm *really* impressed with this rig. It's sort of like a budget Glockenklang / Accugroove stack. I may or may not upgrade the woofer to an Eminence Kappalite 3015lf. WinISD shows it as being better (less midrange hump, more lows), and the weight loss would be welcome, although this is already an easy cab to handle due to the dimensions (fairly narrow and shallow).
Anyway, these are my two rigs at the moment. They both sound great with both upright and electric, and cover every need I have. Some of you know I've been through a lot of gear upheaval lately due to finances. I feel very lucky to have been able to assemble this gear lineup at this point in my life, especially given current circumstances.
Cheers,
Liam