Upgrade time of year again for the old mobile

[Joe 90]

Evening

Its that time of year again, i've started getting annoying phone calls asking if i know when my contract is up, and just spoken to orange to confirm that i can upgrade now.

Trouble it they hung up on me about 5 times whilst i was in a 'queue' waiting to speak to someone. Then they offer me crap deals on upgrade phones despite the fact they've been making £40 a month off me for the past 18 months and all they were giving me is 200mins!

I'm just wondering first of all... whats 'the' phone of the moment.. one thats a bit future proof.
I like the HTC TII thing, but its pretty big. I like the N73 but it was out when i got my k800i 18 months ago. And i like the N95, but orange want £90 for just the phone(!) before i even sort out a new price plan.

Also, I've always been with orange since my first contract mobile through dial-a-phone many years back (hense my crap, overpriced call plan). But how easy is it to switch networks... I don't really want to have to pay for two phones for a month, I'd like to keep my number, and i'd like to not be without a phone... yes i'm very demanding. Because i'm sure there are better deals from other networks.

Any advice would be appreciated