Tao of Tea carries Alishan oolong. It may be a bit pricey, however, at $6 an ounce. I haven't purchased this variety from them before, but other varieties that I have ordered were of good quality. (Naturally, these were varieties that Adagio doesn't carry... so there's no need for punishment or spankings, Amanda.)
The Alishan that the Tao of Tea has is a pretty good high mountain oolong (I like many of their Oolongs, such as their Strong Fire & Dong Ding Oolongs). I certainly suggest you try it if you have the chance, or maybe just have a cup gong fu style in the tea house on SE Belmont (probably one of the coolest tea houses I have ever been too, aside from the Virtual TeaChat teahouse we all seem to love
). I have since had another small portion of Alishan given to me by my friend in San Francisco (he has family in Taiwan). I must admit that the Alishan he gave me was quite a bit better (as it was fresher and came in a vacuum sealed pouch). I am excited to see if the Tao of Tea gets a fresh harvest in though, as this would make it a truly good find!
I have also tried some of TenRen's Alishan, available for $50 (300 grams, or 10.6 oz). I was skeptical at first, since I didn't think the tea would be that fresh. I was pleasantly surprised though by the sweetness and fragrance of the tea. It is clearly not the freshest or most expensive Alishan I have tried, but for the price it is really quite good.