Entertainment Card and most "certificates" from airlines provide 2-4-1 nights and are often easy to get in a city.

Also at Hyatt's site they have a link that posts weekend specials once a week. The Hyatt at Printer's ... is nice, older and parking a little tough. Might be a little closer to your unreasonable (without some pormotion or coupon) budget in SFO for a Hyatt.

You could consider sharing a room?

[This message has been edited by ranles (edited 05-04-99).]