VGA vx DVI Inputs on flatscreen monitors

[MadMat]

Looking to buy myself a flatscreen monitor to replace my trusty old 17" crt !

a 2001FP is out of the question, Dell UK want over £500 for them, and I refuse to pay it, knowing what they cost over in the US

But the question is, How much difference in image quality is there between a monitor with VGA inputs, and one with DVI inputs. Looking at prices on UK sites, there having the DVI input seems to add around £50-£70 to the price of the monitors (I'm looking at 19" monitors on www.ebuyer.com)

Just wondering if it's worth paying the extra for a DVI port, if I'm likely to notice any real difference in image quality in day to day use

Main use of the monitor is poker and windows/office apps, not games

TIA

Mat