How do I set up my store to have no base price, and rely soley on the options/attributes for pricing?

I *think* I've tried looking this up in every possible manner, so please excuse me if I missed something.

Basically, I have gotten to the point where I now have $0.00 shown as the base price, but I want nothing shown as the base price (because it looks sophomoric right now).

What am I trying to accomplish?
I have 1400 licensed products that are repetetive in nature, but all have options and attributes that are similar (ie 10MB 5" x7.5" 300 dpi image as one attribute and 20MB 6.5" x 10" 300 dpi image as another attribute). Until someone selects an attribute, there is no price...

Thanks.