the C3 is a good torch i have 11 of them in 1 xAA and 2 x AA config's.

few words of warning the last few i have got have been the stainless steel version first one was fine the next 2 where aweful.

the P4 version is the better model as in the link above, 1 x enelooplasts about 90 minutes the 2 x version last about 4 hours with 2 eneloops.

http://www.light-reviews.com/uf_c3/review.html

2 x AA version

http://www.dealextreme.com/details.dx/sku.4452

i like the 2 x aa version as it gives me the choice of config's for afew dollars more.