Thanks Ironguts
Have made an executive decision and will buy a new box of tricks but keep my IIyama Visionmaster Pro monitor.
NEC have offered a good price on a 600MHz PIII with 20Gig, 256RAM, Guillemot Prophet 32MB vid card, DVD, etc for about £1,300.
Quantex doing the same spec for around £1,400. Still waiting for quotes from other firms.
Cheers SS