Welcome to RC-monster, Mike, you'll like it around here, its a tight-knit group with some real weirdos/ characters
So far as BL systems go, the 'best' depends on what it is you want from the system and how much you are willing to spend; Castle systems ( MMM & MMpro ) do really well in anything MT and 'uggy shaped, but so too do the sensored Tekin systems- pretty equal specs so its a bit of a personal preference thing that you arrive at from using both systems usually. Tekin does have the advantage of a wider range of motor kv choices, though the castle motors are more powerful by most accounts- you'll see people using MMM escs and tekin motors quite often so I wouldnt get too hung up either way.
As for chargers, there are a fair few dual-channel lipo chargers that can do two lipos at once without the need for a home-made wiring harness:
http://www.allerc.com/hyperion-eos-1...0w-p-5962.html
http://www.allerc.com/hyperion-eos06...er-p-4632.html
http://www.commonsenserc.com/product...oducts_id=2229
http://www.revolectrix.com/10s_description_tab.htm
http://www.rcaccessory.com/bantame-s...pocharger.aspx
http://www.gonitrohobbies.com/TENERG..._DX_p/1250.htm
http://www.hobbycity.com/hobbycity/s...dProduct=11170
http://www.hobbycity.com/hobbycity/s...dProduct=10327
Most of those will require a separate powersupply too- there is a nice tutorial that shows you how to make your own cheap & powerful supply:
http://www.rc-monster.com/forum/showthread.php?t=27554