Great bargain!!! Wow!
As to what bag to get...I would guess it would depend on what you shoot. I do a lot of hiking with my gear so I have a Tamrac Expedition 8. It holds my 35mm and my Hasselblad and several lenses and film and.... you get the idea! LowePro also makes some excellent backpack type bags.
I guess if you have to carry it any distance, it's better to distribute the weight across hips and shoulders rather than one or the other of your shoulders (good way to muck up those rotator cuffs! .