In terms of generators, those Honda's are hard to beat. Their relatively quiet compared to the Briggs & Straton motors. Look for a OHV's, they tend to be quieter. And stay away from the two strokes, they are loud as heck, like a leaf blower.
That being said....
Most parks and recreational areas have a "no generator rule" of some sort, after a certain hour. If your in the middle of the forest somewhere, I guess that isnt a problem. I just like to keep it quiet, my truck makes enough noise already. /forums/images/graemlins/smile.gif
Unfortunately, I dont think 600 is enough to run all the devices simultaneously. You could probably get away with a 4 cup 300 watt coffee maker, and a small TV. If you get a LCD TV, it would be better, as most of them can use 12V.
Most of these generators come in either AC or DC. AC to DC conversions are kinda crappy, I try to keep everything as 12VDC , just so its compatable with my truck. Most however, have like a 10-15 Amp DC output of somesort, so.. your still good. (Especially if you accidentally drain your truck battery!)
I think he meant something like a 2500 sustained, and a 4000 peak unit (for the spike). Unfortunately, the items you listed (Coffee maker, electric stove) are all terribly power hungry. I've never personally seen a small 2500 unit, but thats just personal experience. I've seen them in the 1000 range, and options to parallel connect two of them together for more watts. I havent seen them cheap though!
Alternative:
I found the cheapest way is still a camp stove of some sort (propane, white gas, your choice. I chose white gas cause most stoves can use Gasoline if need be, and a gallon of white gas costs about... 3-4 bucks at wallmart). I use a small Apex 1 (6500BTU)'s and it does a dandy job. For coffee, I have a percolator I use if Im with a group of people, but the other option is to get a Bodum coffee press. Works very well, just add boiling water.
Ever consider running an inverter to a dual battery setup? This is the route I went for my power needs. I have a 1250/1500 peak full time Tripplite inverter connected to a marine battery (115 Ahr). THe recommended drain interval for a marine battery is 25% total amps. So about 25 Ahr by the time inversion and what not is done. This way, I can run my little TV (and I mean little, its flat panel and runs off 3 AA batteries) directly, since it takes 12V input, and I can run small power tools if i need em.
Just my two cents, as always. Im trying to pack lighter and ligher. I cleaned out my truck the other day, I think I dropped a second in the quarter mile! /forums/images/graemlins/rotfl.gif