The requests are as follows:

I have two check boxes on activities that I would like to
have update two date fields on the parent object (in this case person accounts)
with Today's date.

I have a number field on person accounts that needs to
count the total number of associated activities. Just like a roll up summary.

Please let me know an approximated quote for
this job and approximate completion date. Also, if there are any questions, please
do not hesitate to ask.