So I went for the
Fenix PD30 in the end. My mum got it for me for Christmas, but I didn't know it was being delivered straight to my house, so I opened it. Of course I couldn't resist getting it out to check it. It's very bright indeed.
It's got a built in pen-type clip, so I think I can secure it with a couple of cable ties.
Only downside is the batteries - it takes CR123A batteries rather than AA, but you can get rechargables in that type so I'll grab a couple.
For the rear, the
Niteride Stinger looks good, and I think I can mount it on the helpmet, even though it's designed for a seat post.
The picture looks like it's white, even though it says rear. Do you think there's a filter that comes with it, or is it a red LED inside a clear cover?