Being a  keyboard editor in Avid Liquid, learning Vegas required a shift to using the mouse a bit more (Vegas does have keyboard shortcuts - but they work a bit better coordinated with the mouse), learning some new terms,  and even some new ways of dong the same tasks.  What I could do blindfolded in Liquid (not quite) left me shaking my head in Vegas at times - sometimes saying "cool" and sometimes asking "why?".

In a way, learning Vegas was like a side-step forward.  Dockable windows. track envelopes, takes of clips residing on top or each other, opening  multiple instances of Vegas as opposed to using containers and sequences (multiple timelines within the same program instance), scripting (a very cool feature which leads you to the almost required purchase of some very functional plug-ins to allow you to accomplish some standard editing routines that I felt should have been included in the Vegas interface in the first place.   

For me, most the "learning curve" had to do with learning the interface and track header controls.  Workflow came from knowing how the control's worked.  Also paying attention to the cursor tool(s) is important.  The cursor can be used as four different tools  as well as changes into different functions as it hovers in various areas of the windows, all toggled from the keyboard by the "D" key. (Tiny) icons in the track header can change to let you know settings have been applied. So there are a lot of icons to pay attention to to help shortcut your edit time.

Learning Track Headers and parenting and children tracks I think overall was number 1 - cause the effect all the controls within the header has on the timeline really  effects your edit workflow.   I feel that my workflow actually stated to develop once I started seeing the relationships as to how controls in the track header effect Pan & Crop settings and  Event settings.

Getting use to only one timeline  is important - cause there are no multiple sequences or containers - just one timeline. I am still learning on how best to work in multiple veg's - but that is Vegas's method of dealing with multiple timeline sequences - a poor one in my opinion but that might change as I do it more.  So instead of having 10 different timelines to access from within the same project, you just keep opening Vegas, create a new veg (project)  that is just a small section of your main veg, and drag the project files into it.  Doing it this way may keep keyframes a bit more stable than doing everything on one timeline - just such a wierd concept to me.

So as I progress until I totally give up, I keep track of things I learn why learning Vegas in links to this file.  I don't always get them updated, but this Vegas section is mainly things I have learned that I try to put in an order that I can find something - cause I seem to forget things that I am not doing on a regular basis.

One quick thing about "Spot's Book" that I see many people on the Vegas forum refer to. Spot is Douglas Spotted Eagle and he is on Creative Cow Forum and even the Sony Vegas forum and he is I think part of a group known as VAAST - which has some training material as well as Ultimate S, which is a add on program to Vegas that runs scripts or actions that can simplify some things in Vegas that should have been simplified in the first place - but are not - but back to the book... I found that the Learning Vegas 8 book, if you want to learn about Pan & Crop, actually was not published correctly - and there is a big correction if you really want to learn that process from the book, but that the correction is only in the Vgas 9 book. Why Vasst or the publisher or someone doesn't post a correction in what in my opinion is a huge error is insane - if they know it is inaccurate,  and people are trying to learn the process from the book, I think purchasers should be told and the book corrected. Pan and Crop and Track Motion  is a big part of the vegas work flow - the book should be corrected in some way for purchasers of version 8.  Makes me wonder if anyone really reads the book - as opposed to just telling people it is one of the best way of learning vegas.  There - I've said it.