Hi folks -- I've posted my review of the FSE 40W Deluxe hobby laser over on my blog: Review: Full Spectrum Engineering 40W Hobby Laser (Deluxe Model) » The Poptimistic Tiki-tastic Retro-Future Present
Spoiler: I'm quite happy with what I got for the money I spent. Strongly recommended as a personal laser, but probably not for a commercial endeavor where you are going to run it for many hours each day. But hey, they do call it a hobby laser, so don't take that as a complaint!