I'm in the same boat, trying to get to grips with Symfony 1.4 w/Doctrine.... about a few weeks in now. The documentation is quite limited, but I've noticed that you can find a lot of stuff on the Symfony website if you just dig a little bit. The lack of organisation of the material is the main problem.
What I've done is read through the "Definitive Guide (2007)" which is a decent starting point, and because the Propel stuff only really affects the model layer, it's quite easy to read it and mentally translate it into Doctrine. I also found it useful to learn Propel syntax basics just to be able to read more Symfony stuff.
And then, often, there's documentation for Symfony 1.0/1.1/1.2 where basics are covered, but the same documentation was never made available for 1.4 in a comprehensive way. I've still found it useful to dip into these, bearing in mind of course that some of it may be badly outdated and obsolete.
Funnily enough, I've not read through carefully through either the Jobeet or Askeet tutorials, just because it became quickly obvious that the tutorials are very selective about what they teach. They pretty much require background understanding of Symfony, or that you'd been a Symfony user for many years.
I've found the Symfony forum quite useless, mainly because it's so slow to get replies. On Stackoverflow I can post something and have an answer in 10 minutes. On the Symfony forum, it's more like 10 days... or never! :)
The Doctrine Google group I think is equally useless, so I just use the Doctrine guide for some finer details.
And FINALLY, I've got a few friends who are experienced with Symfony. Just knowing that their help is available if I get stuck is very comforting.
Hope that helps! Just wanted to share my experience.
EDIT: Was looking for something and came across this... 103 slides of sf + doctrine from jwage himself... something to throw into the mix: http://www.slideshare.net/jwage/symfony-13-doctrine-12