Sadly, sony no longer manufactuers (consumer) CRTs. They do have the Aritsan (but at $1400 it is not cheap). I recently had to get a new monitor as my Sony G400 finally died.
I settled on a NEC/Mitsubishi FE991SBK. It is quite nice, although it can not match the refresh rate of my old sony. The screen is totally flat (It seems the samsung CRTs have a curved surface below the flat glass part of the screen). The price ~$300 (including shipping) from Newegg. The Image quality is great, the SuperBright feature might come in handy when gaming.
This monitor is also supported by NaViset, an excellent software tool that can be used to set up and test the monitor (moire, color, geometry, etc.)
I settled on this monitor because I also spend a fair ammount of time using Photoshop.
*Curses 19" LCDs and their 5:4 resolution on 4:3 sized displays.