Lithiums are good for high-drain devices...but they are not rechargable in the standard formats.
http://froogle.google.com/froogle?q=dur...t;fficial&tab=ff&oi=froogler&scoring=p
You can get it w/ batteries, but I've only seen it that way once (at Fry's, just a few weeks before I wanted one--arg!), most are either no batteries or two batteries, and 1800mAh at that.
http://www.thomas-distributing.com/ko-k6000-c.htm
Only two AAA slots, rather than all being AA/AAA.
Both of the above charge each battery separately. The Kodak appears to have each AAA linked to a AA, so charging six will have two independent AAs, and 2 sets of AA/AAA. Nothing to be concerned with using only AAs.
A charger that requires two batteries per bank will only charge one fully, as they are being charged together. Once one is done, all it can do is top off both. If one isn't almost fully charged, that will cause one to be undercharged. With a single battery per bank, all can be fully charged and topped off on each charge cycle.
Overall, you're probably better off buying batteries separately, as few come with high capacity ones.
Some batteries:
http://www.thomas-distributing.com/ko-k2000-c+4.htm
http://store.greenbatteries.com/sa23mahaanib.html
http://www.thomas-distributing.com/aa-nimh-batteries.php#aarechargeablebatteries
Ansmann, Energizer (Sanyo?), Maha, Unicross, Sony (Sanyo?), and Duracell should all be very good batteries, reaching their rated capacities.
Aside: I will never trust the automatic forum link making again.