Went to COSTCO today and found an XPower 1000 watts by Xantrex fo $49. I picked up one based on the price alone but I'm sure I'll find some use for it. This unit will power a small refrigerator, a 650 watt microwave oven, fans, powertools, TVs/DVDs etc. It comes with a wiring harness. This is obviously not marine rated but at that price you cannot go wrong. If hardwiring the unit a fuse of 150 Amps should be inserted (+)and the location should be in a well ventilated area close to the battery.