I plan to use a deep fryer like this. This one happens to be the Philips HD6161 that sells at Target stores for about $60.
Another good fryer is the Waring DF200 (about $130 at Williams Sonoma) that Tom Sherping uses.
I looked at them all and these two are the best. I'm not sure why the Waring cost twice as much. The Philips until very recently could only be had in the UK for about the same price as the Waring. Waring has reliable knobs for setting time and temperature and the Philips is all digital. Construction wise they are about identical.