Congrats! My friend works there and LOVES it!
It really depends on what type of lifestyle you want. Midtown is a great option if you want to go out (eat, drink, be merry). This is where I live for about $500/mo (pretty reasonable esp. if you're coming from the Bay). Davis feels like a LONG drive, but it is a safe, health conscious college town. Definitely a better location (compared to Midtown) if you're looking to buy a house and settle down with a family. If you are interested in a good location to raise a family (and can afford it), I highly recommend East Sacramento!
I'd stay away from Natomas, Folsom, and Roseville because you'll be at UCDMC.
Feel free to PM me!