A monitor with a Diamontron tube is your best bet...
Mitsubishi Diamond Plus 93SB - CRT 19 inch, 0.25 dot pitch, Diamondtron-NF Superbright, 1600 x 1200 @ 75Hz Max. res., 3 Year on site swap out warranty - £173.80 exc (£204.21 inc. VAT)
I have the 17" model Mitsubishi - the picture quality is fantastic, though if you read 19" CRT Monitor reviews the Iiyama Vision Master Pro 455 + Iiyama Vision Master Pro 454 get an overall better right up, but they are pricier.
If you can stretch to £285.64 (inc. VAT) for the Iiyama Vision Master Pro 455 you wont regret it.