Just did it early this year. Sort of an odd circumstance, though. I was laid off, and basically liquidated my 401k to pay cash for it. Before the crash, the place was valued between $120-130K. I bought it for roughly half that.
First thing I'd recommend is to make sure it's in an area/neighborhood you can stand to live in for awhile. If you can't meet the "primary residence for two years" requirement, you're going to have big trouble finding a lender offering a decent rate (real estate speculators are treated differently than people who want to be homeowners).
I guess I really can't tell you anything else about financing, since I didn't have to borrow--I guess I'll just stick to the practical stuff.
Every single foreclosure I looked at needed work. This one needs some non-structural foundation repair (solid enough to support the weight, but needs moisture barrier repair), a proper primer & paint for that awful 90's masonite siding, and a few windowsills replaced. There's also other stuff that is "broken", but IMO not necessary. Example would be the power garage door openers. Both motors still run, but the mechanical bits are trashed. I just popped the safety catches, and open the door manually.
When you look at a property, pay special attention to big-ticket items like HVAC and appliances. Often, even if they are present, they can be faulty due to how long they've been sitting unused. Try to find out how long the property's been vacant, and try to snag one that hasn't been empty for long. I personally think we got lucky..our had only been sitting for about 18-22mos. (from what we can tell), and it seems to have survived in pretty good shape. All we had to do was re-plumb the hot water heater and throw a thermostat on the central heat/AC. Closed on a Tuesday (nothing like a cash closing, easiest one I've ever had!!), slept in it Friday night. Dishwasher even worked, all we had to replace was a fridge (we already owned our own clothes washer/dryer).
Actually, the water heater thing reminds me of something else: check for signs of illegal entry and/or vandalism. Again, we were lucky, the thieves took the copper connecting the heater to the water pipes, but none of the other copper in the plumbing. One of the garage doors was trashed (but shored up well enough to prevent another entry), one of our rear doors has one pane of the double-paned glass missing, and the front doorjamb shows evidence of repair (a poor repair.. ).
In short: none of them are pretty. Most of them are incredibly cheap. Some of them are livable without immediately having to dump $10K into the place. Personally, I think I stole the place. If I could find any work at all, most of the problems would already be solved (I can do most of the work, but supplies cost money). I don't know if it will help, but here's a link to the thread I made here when I bought the place:
http://grassrootsmotorsports.com/forum/off-topic-discussion/locksmithing/45685/page1/
Good luck, man. I know these things are never pleasant.