Smack me for a dullard, but doesn't an LCD TV take a standard PAL/NTSC (re game signal) as standard? mine does. All it takes to play games from my A4000T is a scart cable (or you could use a TV modulator). With a VGA cable hooked up to the picasso and plugged into the TV VGA port, it should auto swith as swell.
oh...and welcome back!
There's no SCART in the US, unfortunately. Would make things a lot easier if there was! A TV modulator will reduce signal quality, but one of amigamaniac's new S-Video adapters should be a lot better than the old Commodore A520 boxes.
@ ScottJClifford
Welcome back! It sounds like you've got everything you need, hardware wise, to get going. Something to keep in mind, though, is that a lot of LCD monitors won't sync to 50Hz horizontal - that's a problem for PAL games.