i was looking around for things like this a couple of weeks ago and found argos to be reasonable, they have 15" one with inbuilt dvd player for £199 and then the price and size goes up
goodmans 19" 299.99
acoustic solutions 20" 349.99
bush 20" 399.99
personally i went for one with freeview and bought a clearance dvd recorder with 160gb hard drive from richer sounds worked out at £510.00.
if you buy the halfprice wall bracket with the one from argos replace the plastic washer with metal one as we found they just squished when tightening and would not hold the lcd in place, the metal washers we replaced them with worked a treat.
hope this helps
ps if you decide to go for a freeview one look at these,
argos item 529/0530
wharfedale
17" lcd
pc input
2 scart
digital
freeview
compare this to
argos item 529/0592
wharfedale
20" lcd
pc input
1 scart
freeview
and if you look in the details it also says digital.
so your practically gettting the same tv with 1 less scart for the same price but 20" instead of 17"
TB