Do not buy the cheapest...basically if its a blister pack, do not buy it. What would help if you are on a budget is head down to a thrift store or pawn shop and pick up a used unit, preferably one that uses SD cards as opposed to VHS or mini DVD. If you are just starting out, you don't need the best around because you do not know if you will be able to stay around on youtube. Look at who is popular like Spoony or the AVGN. Their first videos were not filmed in super mega HD in 10.1 audio.
Buy lamps, and use them to create adequate lighting.
Learn how to edit video (I use Sony vegas), specifically cutting and trimming...as well as color correction.