A quick question, many complain that their old games look like total shit on their new HDTV:s, I've been thinking of getting a CRT HDTV. It'll be able to display these low resolutions correctly since it's a CRT and doesn't have a native resolution right?
No HDTV displays NTSC (480i and lower) or PAL (576i or lower) without processing, but CRTs have huge advantages over other technologies in this regard. It all depends on the quality of the scaler (not required on most CRTs for most modes, as you know) and deinterlacer (required on all HDTVs). You're looking for picture quality and lag.
Toshiba CRT HDTVs have fast (very low-latency), high-quality deinterlacers. I have two, and I love gaming on them. The worst part is the tearing, but all deinterlacers that operate this fast on consumer-level equipment will exhibit tearing (better deinterlacing methods are slower and/or require professional grade equipment - and for all the fanboys, re-routing through dscaler seems slower than using Toshiba's deinterlacer.)
If you need zero lag, don't go for HDTV. If best picture quality is important, followed by extremely low lag, go for CRT HD. At the prices CRT RP HDTVs are going for, and the superior picture quality and flexibility they offer over other technologies at the resolutions they support, you can't go wrong with them. Go for Toshiba or JVC CRT RP HDTV, then save for SED several years from now if you want to. Any other technology is a waste of money at this point in time, because unlike CRT, they will have NO advantages to SED when it is released. Zero, except maybe price (because SED will trounce all the other fixed-pixel techs in picture quality).