if that is all you can spend, your best bet is to find something used (locally if possible, so you can have it looked at first). Anything new in that price range is usually of low quality. I was able to purchase a used Romanian laminate for 800, plus another 100 to have some seems glued. Luckily I was able to have a luthier check out the bass before I bought it, so I would know if it was going to be a money pit or not.
If you can't buy used, your best bet is to wait and save up some more money and try to get a Shen or Christopher. While they are still made in China, these basses are known to be of good quality.
Oh and as everyone else will tell you, GET LESSONS!!

Double bass is a completely different animal compared to electric bass. If you don't know what you are doing, you can easily and seriously injure yourself.