Since I am now a dps warrior, I had to change my professions. Inscription will stay since that's still useful, but herbalism had to go as it has no dps benefit at all. I therefore have spent the last few days and several thousand gold levelling jewelcrafting.
Impressions - the period up to 300 is absolutely painful. There were simply not enough gems and ore on the AH for me to do it without farming, so I had to run around on a mining alt farming ores for several hours. Seeing the only Azerothian Diamonds on the AH listed for 20g each was very depressing. From 350 onwards though it was cake - I had lots of cobalt and saronite ore saved up from levelling an alt, and being exalted with all the northrend factions meant that I could immediately pick up rare recipes. The last 20 or 30 skillpoints will (if my gems on the AH sell) actually end up making me a few hundred gold in profit, rather than costing a few hundred gold.
I need to find my feet a bit with the new skill, but the daily quest and currency system is interesting - reminiscent of the excellent cooking quests (which are one of the minor successes of this expansion I think). I should have my first Bold Dragon's Eye gem tonight, for a total increase in strength of 14x3=42 when all three are socketed.
It's quite a large investment for about 110 attack power (or 75 dps at my gear level) but that's what raiding is all about - working hard on your gear (grumble), and hopefully I can make the gold back through buying and selling gems.
On the gold making front - prices (and therefore profits) continue to rise for glyphs, although I note that one of my fellow glyph sellers seems to undercut me pretty regularly and quite quickly after I post, so I am making less money overall. I guess I am on his friends list. I will have to combat this by getting my bank alt to post (which is just annoying tbh). Having JC as an alternative source of money will be useful.