Check out the Resin Addict forums:
http://www.resinaddict.com
Some of the information is older, and hidden throughout the forums, but the majority of it is excellent content and should be essential to anyone interested in mold making and casting.
In the Dr Polymer section, you'll find equipment, technique and supply reviews.
The majority of these folks use vacuum and pressure as part of their casting process, and if you are pursuing professional results, you'll probably want to, too.
Like any endeavor involving sophisticated, powered tools and equipment, this adds an element of danger to the hobby. You need only read the thread with the reports of the Harbor Freight pressure pot exploding on some folks for an understanding of the [admittedly slight] risk.
Edit: forgot to mention how much I like your sculpt!