The Sigma Mirage Evo X Pro is a dual lamp (10W spot and 5W flood) that comes with a 4Ah battery and smart charger for around $100.
They had some problems with the battery and added a little rubber collar to the cable where it goes into the battery. If you buy this light and get an old style battery Sigma will exchange it.
http://www.sigmasport.com/en/produkt.../evo_evox_pro/