Can I do this

[blahblah]

I can upgrade my phone now if I want to but I'm happy with my 750i at the moment. Can I upgrade then sell on the new phone.Is it legal?

[dannius]

Of course you can, you don't rent the phone it is yours. However you'll obviously be locked into another contract for 12/18 months.

I've done it plenty of times when i've got bored of my phones a couple of months down the line.

[blahblah]

In your opinion, what would the best couple of phones be that would sell easy enough

[Jamiewalshe]

best bet is to obviously upgrade to the most expensive phone you can, any of the brand new well known phones are good. i did this and upgraded to a k800i for free, specifically as i knew it sold well (although when i got it i really was tempted to keep it!!) i sold it for £245 on ebay, which was lovely.

phones like the new nokias, new sony ericssons etc always seem to sell well. have a look at handset only prices, then deduct say 20-40%, and that'll give you some idea of what to aim for.