narrowed it down to these:
http://www.amazon.co.uk/Dell-ST2220-21-5-Widescreen-Monitor/dp/B004G5YY9S/ref=sr_1_6?ie=UTF8&qid=1354660006&sr=8-6
http://www.amazon.co.uk/Dell-Ultrasharp-U2312HM-inch-Monitor/dp/B005MHMFJA/ref=cm_cr_pr_pb_t
http://www.amazon.co.uk/Asus-VS228H-Widescreen-Monitor-50000000/dp/B0050Q5PE0/ref=dp_cp_ob_computers_title_1
http://www.amazon.co.uk/Asus-VS229HR-Widescreen-1920x1080-Headphone/dp/B008ON76YS/ref=sr_1_14?s=computers&ie=UTF8&qid=1351794331&sr=1-14
Or could you recommend a good 21.5 inch monitor no larger than 23 inch.
http://www.amazon.co.uk/Dell-ST2220-21-5-Widescreen-Monitor/dp/B004G5YY9S/ref=sr_1_6?ie=UTF8&qid=1354660006&sr=8-6
http://www.amazon.co.uk/Dell-Ultrasharp-U2312HM-inch-Monitor/dp/B005MHMFJA/ref=cm_cr_pr_pb_t
http://www.amazon.co.uk/Asus-VS228H-Widescreen-Monitor-50000000/dp/B0050Q5PE0/ref=dp_cp_ob_computers_title_1
http://www.amazon.co.uk/Asus-VS229HR-Widescreen-1920x1080-Headphone/dp/B008ON76YS/ref=sr_1_14?s=computers&ie=UTF8&qid=1351794331&sr=1-14
Or could you recommend a good 21.5 inch monitor no larger than 23 inch.