IMO the best phat model if you dont care about PS2 compatibility (or you just have a PS2 for that) would be the CECHL01, as long as you repaste the system and have the fans set at a good enough speed anywhere between 30-50% (your noise tolerance...
There's a few frame hitches at first, but give it a few seconds (like, 5-8) and it's a super smooth and SUPER comfortable experience.
The only things really missing are brightness controls for the switch and an OSD for the volume.
Seriously...