Does anyone know if I'll be able to use my Cingular cell phone in St Lucia?
Yes you can --- check with Cingular re the prices -- it's not cheap. If you're staying any length of time you can also bring your phone into a Cingular office on the island and have a local SIM card put in -- and buy a local prepaid card and use it here. Just don't lose your US SIM card!!
Are cell phones for rent while in St. Lucia a common practice? If so, where is the best place to do this? I will be renting a car while I am there and would feel more comfortable if I had a cell phone.