I use clustering over database mirroring. Clustering has its issues also but at least I can use without rewriting the client applications to be DM aware.

Like most SQL Servers DBAs I'm still waiting for Microsoft's answer to Oracle RAC.

For DR site failover scenarios I used to use log shipping for several years and probably spent about 20% of the time maintaining it. Now I use EMC SRDF/A and replicate at the disk level maintaining a dark site within one minute and requiring 0 DBA hours. This is cool stuff if you can afford it.