I bought a Lincoln AC 225 Stick Electrode welder. I like it just fine and have made many things with it, such as tube doors, spare tire carriers, welding tables and a whole flatbed. All in all though, even though I love my welder to death, it's probably better to go with mig because it will weld easier for a beginner and weld thinner material. If you are planning on welding real thick stuff, you'll need to drop a lot of cash into a mig, or do a lot of beveling, or just learn how to weld with stick electrode.
Money was an issue with me too, the Licoln Ac 225 cost me $210 at Runnings Farm and Fleet. I've spent about $400 in steel in 3 months heh heh.
Good luck! A welder can make dreams come true! If your dreaming of a flatbed! Or melted puddles of slag!