Check out arpandeb.com - he reviews lots of budget tabs. I would recommend either of the following, google them out
1. XTab A10
2. iBerry bt07i
3. veedee d10
4. veedee d10e
Only 1 and 4 offer android ICS (icecream sandwich), but both are out of stock at the moment!
Oh, and forgot to mention, all are in the 5-7k price range.