charger questions

Im looking for a ac/dc charger that is capable of charging a 5s 8000mah lipo (possibly 6s in future) as well as my nimh I want one with a balencer built in My batt is a true rc so a hyperion one will work. I have heard though a ac/dc charger is not as good as just a straight dc charger, would I be better off getting a dc charger and then a seperate power supply?
What are your recomendations I want to keep to down to about $250 or below.
Here are the chargers I have in mind
A bc-6 http://www.lipostuff.com/Bantam_e_St...er_p/btbc6.htm
A hyperion http://www.allerc.com/product_info.p...oducts_id=3367

since I am familiar with the Hyperion chargers that is what I will suggest, thier 0606 ac/dc model only has an output of 50 watts which isnt very much it would take about 3 Hrs to charge the 5s pack you have listed, but if you went with the 0610i (which I have and love) would do it in one 1hras long as you have a suitable PS.

you can multiply the voltage and ampage the pack has to determine how much wattage you would need to charge @1c and do the same for PS and allow yourself 20% for Efficiency loss...I have the Ofna 18amp PS and after the 20% gets factored in it is good for about 207 watts and I need 111 watts to charge my 6s 5000 pack and my charger will put out up to 250 watts