All 2st cheap battery powered LED lights

anyone use them or got any info on them? bicycle style that run off AA, AAA or 9V batteries & can be fixed to headlight(replace actual globe assembly)/handguards or headlight mask. rode this afternoon/evening & really needed a headlight to get home(kangaroos everywhere plus had to ride in the middle of 2 riding mates with headlights to see were I was going!).

headlight on my 300 is permanently out of action & think the headlight on my 125 could do with a helping hand(bit dim). don't plan on doing too much night riding but heading into winter means can maximise daylight for trails & head home in the dark. could potentially be a wired set up that runs off a battery in airbox or fixed to headlight/fork leg. thanks for any info

http://pages.ebay.com/link/?nav=item.view&alt=web&id=310949176224
I use one of these have drilled holes in my visor to yank bands through and run the cable down to my jacket gogle strap holds it out of the way.
About 3 hours life on full power and trust me its more than enough light to ride by, see you in a month