Quick pointer to two dates for your diaries:
Artfield has been announced for the 6th and 7th of June. Compos other than the standards include Gigascreen pix, 1k procedural graphics, and ZX General Sound compo (well, it's a .MOD compo).
DiHalt is taking place a month later on the 11th and 12th of July. In addition to the standards there's a TurboSound FM compo, in which I hope a few more people will use the AY as well as just the FM part. Makes it sound a little more "ZX", IMHO.
So. Add them to your PDA's, iPhones, and whatever other technology you use to record upcoming events (a pen and paper, you say?!) and get working.