Tamrac Expedition 5 has arrived!
It is about 2-2.5 times the size my old bag and it is alread full!!! I had things so well packed into that little square one! It is well made, easier to cary and there is definitely more room (I can still squeeze some more gear in it). I am definitely happy with it; although, I may need to get an addon lens case if I buy another lens 
Thanks for all your suggestions. The bag is indeed well made like you guys said. It is alittle smaller than I imagined but I am very happy with it.
Thanks to all who recommended it to me!
Cheers,

