I would highly recommmend to you that you adopt an FIV+ cat. I have two and they are the loves of my life. Ivy has been with me since I trapped in in Oct 1999 and I just added Scooter a few months ago and him and Ivy get along great! They really love each other! Both of them if you didn't know it you would think they were just two "normal, heathly" cats. FIV+ cats can live a very long life as long as they are well taken care of. Plus the person that said you have no guarantees any cat living along life is right. I say go for it!
Melissa