im-headed-west:

Thanks for the link.

Re: earning miles, I think this is the definitive answer (got this from the link you pointed me to):

"
1 Mileage Plus mile for every $1 charged in purchases.
The maximum number of miles you can earn with the United Mileage Plus Visa card is 60,000 miles per calendar year. However, there is no mileage cap for Mileage Plus Premier®, Premier Executive®, or Premier Executive® 1K® members.
"