ShadoeFox
Aquarium Advice Freak
Don't ever buy those all-in-one deals unless you really know what you are doing. Those are come-ons designed to get you to buy something. Now if they are willing to let you substitute equipment you choose (with maybe a slight price difference) then that is, dare I say it, a whole 'nother kettle of fish!
I've actually done three of those package deal purchases (I didn't have any aquariums like... three or four months ago. Now I have four plus smaller betta tanks which I don't call aquariums but are WAY not bowls)... and I've had alot of good luck.
Of course, I got them all fifty percent off by wandering between petsmart and petco sales, and I've put the 40 gallon filter on the twenty gallon tank and the twenty gallon filter on the 18 gallon tank (Gonna upgrade that most likely.) so I'm not exactly using them AS packaged in several cases...