Hi Budgetneil
Here's something that ticks all your boxes and at a super bargain price!
It is a Harley Benton BA500. From www.Thomann.de.
500 watt class D amplifier, compact and lightweight , headphone out and aux in, lots of tone shaping capabilities. And amazingly, it actually sounds really good. I've had alot of different (expensive) amps over the years, but this thing has been great. Used as my main gigging amp for the past year with no problems at all. Before I bought it I did some research and it seems to be modelled on the Ibanez Promethean range.
Anyway the best news is that it costs a measly £160 brand new. There is also a 1x10 combo for about £235. The good bit about this is the head is removeable so you can use it with any cab. Don't know about the speaker in the combo but as you can tell I'm a huge fan of the amp and think it represents the best value out there at the moment.
Check it out.
Hope this helps
Cheers
Paul
http://www.thomann.de/gb/mobile_prod.html?AR=238698