A decent summary of my Metcal: http://www.audioasylum.com/reviews/Other/Metcal/SP200/tweaks/30671.html
I got it used for $75 from a friend when he wanted a new one, retailed around $300. For pro solder guys, I don't know if the Metcal is necessary. While I believe my board stuffing skills have gotten quite good, the Metcal makes things even easier, especially with heat sensitive or confined conditions.
And Ghost in the Shell (especially the Stand Alone Complex) is phenomenal. I feel that anyone truly interested in what our future might realistically look like, including the moral and philosophical struggles we might deal with should give it a shot, even if you don't care for Anime. Truly special, and of course, the Tachikoma rule.
And good luck with the B22! I feel like stuffing the boards is easier than layout and casing if you want it to look good. I can't afford custom face plates, so am trying to figure out how to do precise cuts using my sad tool set. I think drills and files are in my future.