Help with my upgrade from W810i to ???

[ste1000]

I've recently been contacted by O2 indicating I am due for an upgrade. The problem is is that I'm finding it hard to leave my current W810i behind. It has been far and away the best phone I have had and previous experiences with Nokias, Motorolas and Samsungs have been painful to say the least. My current handset is getting old so I could do with a new one. There are certain features I really like about my current phone that I would like to keep:

• I listen to the radio more than anything else
• I use the walkman function regularly but would like a larger memory (512MB currently)
• The camera is OK for me but I wouldn't say no to a better one
• Other useful little touches like the torch function
• I have become accustomed to the Sony Ericsson style of phone navigation so would be reluctant to move away

I currently pay around £30 per month on my current contract and would prefer to upgrade for free if possible so the newest phones (e.g. W960i) are out of reach. As I see it, I have a few options available to me that would fit most of my criteria:

• SE W910i - same product range as my current phone but with increased memory
• Nokia N81 - Has massive memory but not SE. Also my last Nokia was a pig, i still bear the scars...
• Get another W810i with a larger memory card

I would be extremely grateful to anyone who has any advice these phones or others that might be worth a look. Are they reliable? How user friendly are they?

Thanks guys

[t1m103]

just upgraded to a w910i myself from a w850i so far so good,at least with o2 they dont remove some of the phones features and replace them with there own.

[ste1000]

Yeah it looks pretty good but I've heard some people have issues with the battery life and general reliability. Anyone tried the N81? It's likely to cost more but is it worth it?