If price isnt so much an issue as to protection and quality of products. Check out Scheer Signature Detailing. Scheerdetailing.com , He is located in Miami, FL where i can see you are located too. I just got a 2012 135i in LeMans Blue from Connecticut and it was disgusting! so much salt contamination that you could feel it on the paint! I detailed it with him using Swissvax and i'm in love with the results! His high end products are Swissvax but he can use less expensive products if requested.
Heres Some pics so you can see. This is an entire month after the detail with only touchless car washes. It may be a bit dusty (because it was probably 3 days unwashed when i took this picture) but you can see no swirls!