You didn't provide many details.
Very generally, I'll say that:
A. I'm pretty happy with a little Samson keyboard I picked up last summer (Samson Graphite 49) to have a 2nd, smaller, portable keyboard to travel with on vacation. For the price range mentioned, be prepared for 'mini' keys, though - don't know if that's a concern.
B. I have a larger Focusrite interface (18i20) and cannot say enough good things about it. Assuming their quality holds up on their smaller units, you probably won't go wrong with one of their units.
The best advice would be to do two things. First of all, if possible, go out and try some keyboards at a store before purchasing. Secondly, be patient and save a little bit more so you don't just get the cheapest thing around, and soon thereafter have buyers remorse.
Good luck.