Here are some additional helpful links:

<Since this is such a popular questions  does anyone want to donate web space where we can post this type of information?>

www.microsoft.com/.../default.mspx
Towards the bottom is a section called "Demo's and Training". Spread a little time studying both of these.

sharepointcustomization.com/resources/default.htm
Excellent site with great articles.

Take the 2.2 seconds and sign up for an account at www.msd2d.com. They have a SharePoint section that is killer. They have a couple of upcoming seminars in June you will want to sign up for.

http://www.msd2d.com/WebSeminar/default_03.aspx
Once you are signed up take a look at the web seminar section. I learn best by someone showing, then going and doing. Bill English is a killer instructor and has a chapter out of one of his summits titled "Using Documents in SPS 2003". This will address your document collaboration, workspace etc issues.

http://sharepointsummit.com/
Hands down the best bang for your $$. If you have the means make this a priority to attend.

Books:
www.amazon.com/.../103-1937391-7417409
Just received this book Friday. About 25% through and it has some pretty good stuff for $41.00 you really cant go wrong.

www.amazon.com/.../103-1937391-7417409
This is the book I've been waiting for. Unfortunately it does not come out until June 04.

SDK:
Save yourself some time and take a couple of hours to download and review the SDK. I am a project manager not a developer and this document made several of my questions a little clearer.
www.microsoft.com/.../SDK.asp

www.microsoft.com/.../sharepoint_tips.mspx
Tips and Tricks for Using SPS 2003. I love this link and have gotten a lot of mileage out of this as I communicate and begin training / communicating over SPS.