If you're looking for practical tips 'n tricks on how to use the Bentley BIM applications (and even MicroStation), than check out this BIM PodCast page. It's setup and kept up to date by my fellow Bentley colleague, Lawrence Eaton... outside office hours of course (Lawrence, if you're reading this, you really do need to get yourself a hobby :-).
The PodCast sessions are rather technical in nature, but thanks to Lawrence's British lecturing capabilities, even a technicaly-handicaped marketing person such as myself gets it. Each session doesn't take up more than 10 minutes and is easily downloadable. This way you can store them for viewing later (via iTunes) or even take them with you on your iPod.
Please note: the podcasts have moved to http://www.spect0l.com