I'd reccomend trying to get two Iiyama Prolite E431's
17" loveliness - I bought mine for £320 and haven't regretted it since, it was CPC's TFT of choice for about 5 months, and was only replaced because they thought a rival sharp one physically looked nicer... Absolute bargain at £180 (komplett)
ajbrun - it's just like having a normal monitor only with a break in the middle: the mouse goes across the gap and you just use windows as per normal...