Well, it's the night before Scaleforum and I'm adding the last things to my shopping list...
Alan Gibson waisted pinpoints - if I'm getting the wheelsets, then I need the bearings. The ones with the metal cutaway so that they are like a little Mayan pyramid (but obviously without the human sacrifices) in shape, and which mean that there is much less metal or plastic that needs to be removed when modifying axleboxes to fit over them. It may mean throwing away, or at least popping in the spares box, perfectly good parallel shaped bearings, but the improvement in ease of fitting makes it so much more worthwhile.
Piece of aluminium for RSU - I have one of the superb London Road Models resistance soldering units. I've never been very happy about earthing the workpiece through a piece of scabby brass sheet that was sitting around. I think that I need to look at Eileen's Emporium (now under new ownership!) for a piece of proper aluminium sheet that I can use for a more professional set-up.
And that's it. That's my shopping list. Of course, there's still plenty of room for the impulse purchases ;-)