Hi there. I am in the market for buying a pda because right now my life is a lil bit how should we say disorganized and i can not keep track of what i am doing. Since i know nothing about what i am looking for. I would like some opinions on some good PDA and what to look for in them.

The Blackberry series

i'm an iphone fan. it's good to get organised, access emails, applications, multimedia, etc. blackberry doesn't have wi fi support, does it? well i find my iphone does everything and it looks good.

depends on your carrier as in verizon at&t ect.
Verizon is know for blackberrys.
At&t would be the iphone
T Mobile Is known for their sidekicks but with the new g1 phone that runs the android software that would be another phone to look at.
Just all depends on your carrier