Since you aren't in the USA I can't answer that too well. Here in the USA all analog broadcasts will end in 2009. Yes, you can get a D/A converter, but what's the point? HDTV has a far better picture quality. I don't know how much HD is being broadcast in Europe. If it's extensive, and you need a new TV, I'd go with an HDTV. If you don't really need a new TV, and HD isn't that common, you may want to wait a while. Prices are dropping all the time.
As for LCD, they are much more expensive than a CRT, and don't look as good. They are very bright, but don't have as much contrast, as good a black level, nor do they handle motion as well.
It's getting hard to by a CRT in the UK, for good reason; the size, the power usage, the weight...plus I don't know what LCDs you have been looking at but the image quality of a decent one is darn good these days. Get one with a decent refresh rate and motion is no problem.
On the HD programming front, there's not a
huge amount of HD programming but it's getting better. Not much on cable, more on satellite. I'm not sure it would be worth buying an HDTV
just for HD programmes but as almost every LCD on sale
is HD compliant (save the real bottom of the market ones) buying a new TV will give you HD compliance anyway.
Like the US, analogue broadcasting will terminate by 2012, depending on where you live starting this year but mostly in 2009. The problem isn't one of HD transmission but that it's a switch to digital so some form of action (converter/freeview/new TV etc) is necessary regardless of HD.
Still, as has been said prices are continually falling, why rush but then why wait if it's what you want? I have a home cinema with a digital HDTV box so I'm in no rush to bin my old CRT but I'll do it sometime this year I expect.