Should i go for M5000?

Hi all,

I have found the forums here really informative but I am stil undecided about which phone to go for.

I just ordered the M1500 which will arrive on friday on select 500 £25 with 1000txt, i snapped the guy's hand off for a free upgrade knowing it is usally minimum £50 upgrade from the online upgrades feature.

I didn't think at the time to ask about the M5000 thinking it would be about £100 but seeing the other threads i think i could have had it for far less or free.

(I know that i am what they class as band 5, which is the top band for upgrades)

With all the problems i have read about the m5000 i'm not sure what to do...

a) Should i go for the M5000 instead?

does anyone know how much it costs to return an upgrade?

Incidently i will probably not be using it primarily as a phone and will keep my C500 or get a C550 also to ring/txt from.

Decisions, decisions...