The player of choice at the moment for a reasonably priced, remote hackable machine has to be the Wharfedale DVD750S from Tescos. Easily made multi-region using a simple hack on the remote, this player is one of the best you can get for under £200.
The important thing here though is that you get a model with the 'S' after the 750 as this adds DTS decoding, a much higher rate of disc compatibility and MP3 playback.
For around £180, you can't go wrong.