We had a great MSDN tecnical session in Austin yesterday with one section on BizTalk Server 2000.

The good news is that it is a great product and has been released to manufacturing. The bad news is the pricing. Enterprise Version (multiprocessor etc) $25K, Standard Version (5 Partners) $5K, Developer Version (identical to Enterprise) $500.

Our Microsoft guy believes BTS will be included in the MSDN Universal Subscription and with VS.Net after the first of the year so it's probably not a good idea to buy the Developer Version right now unless you have an urgent need.