On the topic of inspiration, this manifesto by Hugh McLeod is one of the best pieces I've ever read. I first encountered it several years ago, but reread it regularly because it's that good, and like a lot of other things in life, the more truth there is to it the harder it is to put into practice. Some of the points may be familiar from other sources, but he distills them with the concision of a veteran ad guy and the hard-won wisdom that can only come from having crawled through the tunnel and out the other side.
Here's the link to the pdf. (And incidentally, a lot of other worthwhile pieces on that site--definitely worth getting on the e-mail list.)