I personally use the professional version but then again I do not pay for it. I have rarely used the extra features in professional that standard does not have in 15 years of software development with Visual Studio. The one feature I have used is the integrated database tool; I often do this type of thing in a another tool. The dev enviroment is nice to have all the stuff integrated but I dont always want to open up dev enviorment to look at data. Therefore the tool that installs for DBA to manage the database tends to be what I use most of the time.

I would like the Enterprise version but I think it is ridicules what they charge for that version.

If I were to buy a version I would buy standard; but I thought as well that the Express version was not limited in any way. I personally do not like the fact that if I want to web develop or do c# development I have to open up another tool if I use the express version. For sometime at home I ran the express version to do some work at home but I quickly got sick of the difference in look in what I became accustomed to seeing. Since Microsoft does allow tools to be installed on more than one computer (provided the user is the same user and can not be used at same time; no multi-boxing coding I guess ) I installed my version Visual studio from work on home computer(actually seperate work computer; work and WoW dont mix well)