cheers guys, all useful stuff this
just found Phone4u are doing the Desire HD on T-Mobile for £25/month. 600 mins, 500 txts, 1GB data, free handset, 24 month.
Want to move away from O2, found their coverage ****e lately. T-Mobile seems to have excellent 3G around here and they let you use the Orange network too as they've merged.
edit/ Carphone Warehouse doing the same price on the Desire HD....