As far as I'm aware, it's not possible to purchase qualite CRTs outside some specialist markets perhaps (video professionals?). When my Sony G400 Trinitron began to waver (literally -- the characters on the screen began to oscillate slightly) several years ago, I was forced to look at LCDs, as the few remaining Diamondtron / Trinitron CRTs were unaffordable 21-inchers. I got a Dell 1905FP owing to its respectable Samsung PVA panel but never got used to watching video on the thing. I kept my Sony CRT as a secondary monitor and watched almost all my video on it.
Eventually got the Dell 2209WA and agree that IPS panels make far more satisfactory CRT replacements, though they're still not perfect, and I still prefer to watch video on the Sony CRT or my Pioneer KURO plasma, heh. (Sometimes I wish I had been extravagant enough to splurge on the NEC LCD2490WUXi.) The IPS panel on my iMac is almost good enough to make me think I won't miss my Sony too much when it fails altogether...