Get on E-bay - I bought a portable (great small size) DVD player which I use the remote control to change the regions from 1-4 (before putting dvd in press 'menu 1 9' and a whole list comes up, one option being to change regions and you input region number you require). The picture is always perfect. It is a US model so in the UK all I needed was an RF plug and an adaptor so I could plug the US socket into an English socket and it is fantastic!! I've had it for over 6 months and have never had a problem watching any region. And the best thing - it only cost me $28 (approx. 50 quid). Make & model are as follows:
CyberHome CH-DVD 300
Dolby Digital
MP3
Progressive Scan
Good luck in purchasing one - it will be one of your 'Years Best Buys'. If you need any helping finding one I am in the USA now and would be happy to help.