HOTWIRE has a 3.5* for $67. It's something we haven't seen here before but my guess is it's the Waterfront Hotel at Jack London Square. The Waterfront's a Joie de Vivre hotel and it gets very good reviews, but it looks like it's about 12 blocks from BART, which I suspect is further than you want to be. (You can take the ferry from Jack London to downtown SF though, if that's your destination.) Fitness, Pool, Restaurant, Business, Highspeed Hotwire has no 3* in Oakland and the 2.5* they're offering is a known hotel that's not near BART. The only way to guarantee a near BART location is to pay rack rate for a known hotel. Marriot is $149 and Courtyard $129. If you want to gamble on PRICELINE I think odds of getting one of those two are very much in your favor, though not 100%. I suggest bidding the $45-60 range. Please let us know what you decide, and thanks for using the PRICELINE link, if you go that route.