ok .. I looked at that page. There is only one Starwood Amex card on that page, under hotel cards. There is also a set of three Optima Cards listed, but those are not Starwood-affiliated cards. They are Amex's version of a credit card. Some people tend to use the term Optima when talking about Amex's credit cards (versus Amex's charge cards, like the original blue amex card.) To add to the confusion, Amex and Starwood reintroduced the card about a year or two ago, and the old one may have actually been an Optima card.
My advice: Just ignore all that.
There is only one Starwood-affiliated Amex credit card. It has a fairly low annual fee, a fairly short grace period (time between getting the bill and payment due date) and ofter there are lucrative sign-up bonuses available for it, though I personally don't know about any current sign-up bonuses.
There was a very good thread over in the Amex forum about how Amex allocates credit to new and current card holders. You might want to find that thread and review it to answer your question about the credit line.
-David
[This message has been edited by LIH Prem (edited 12-09-2002).]