I did exctly that and now only use that amex and you accrue spg points very rapidly with it. You recieve the points once you make your first purchase with the card. Dolphin is 10,000points a night as is the Swan. I love the spg program and use free nights(no black outs) and cash and points quite often. We also use it for our drive down to WDW(we are DVC members and drive from boston) in Washington DC or Richmond VA or Delaware on either way. Very convenient. I use my spg am for most of my purchases monthly(as does DH) alternating with disney visa. We pay each off monthly, but accrue alot on both cards.
Connears