cell phone rentals (Madrid)

I hate to do this, especially on holiday, but I need to be able to be reached. I know I can't use my US phone, so I'm wondering about rentals. Any places in Madrid where I can rent a cell for 3-4 weeks?

[ 09-26-2001: Message edited by: MadridMan ]

Hi globalbum! Welcome to the group. You're in luck (I just moved your topic to this forum) because if you use the SEARCH link above/right <yawn!> and type CELL PHONE as your keywords you'll get a number of previous threads on the topic... yadda yadda... hehhehehe...