Research Question & Basic Design

Ok, after thinking about it for some time, I've more or less decided exactly what I want to know.
As mentioned earlier, I'm interested in finding out how much YATs know about what MDS can do, as well as how much MORE they would pay IF they knew more about what was available thru MDS.

Still taking Research Methods this semester, so I'll have to improvise a little, will seek the prof's comments later on....
Basic Design:
Experiment Method 2 groups before-after design, N=?

Both Groups will start off by having a logbook like the one i did (available on my other side) about their information requirements/how they used their handphone.
Also, they will answer some basic questions meant to gauge how well they know MDS, how much they're paying (if any) for GPRS and whats the maximum they'll pay.

GROUP 1
After the preparations, they'll be exposed to a video which will increase their awareness as to the possibilities of MDS. Following which, another set of qns will be given to them, these qns (HOPEFULLY) will reveal an increased willingness to pay for MDS. (As compared to previously)

GROUP2
Being the Control Group, they WON'T watch the video at all. But also, they'll be asked the exact same qns as group 1.