I was going to run 2 of the trustfires from the second link. Though the 900 lumen chap looks good.
BTW rob, the 2X160 lumen lights I use are good for unlit country roads at a fair clip.
I was very tempted by the 900 lumen model ( i even suggested them in a previous thread) but having read lots of reviews they appear to be badly made and nothing like as bright as stated. I have just got some of the 240 lumen (8W) ones that are on ebay (and i think deal extreme) and this seems really well made and very bright. This was 20 quid with batteries delivered to my door. It is relatively heavy about twice the weight of a AA maglight (maybe slightly less) but so far im really impressed. You can also get a long throw version but apparently that gives a very very tight circle of light
I may still give one of the 900 Lumen torches ago in the future just to see what they are like but the quality has really put me off.