Right,,,here comes the first lot.....
Nº. 1
Try these guys who I used back in April:
http://www.low-cost-transfers.com/faro-airport/index.php
Nº 2....
http://www.polotur.com/
Nº 3.
http://www.sul-travel.com/
Nº. 4
See if Diskwizz is floating around the Tripadvisor Algarve forum..he usually has some ideas.