Blimey.. this takes me back. I also had a ZX81 and upgraded to a spectrum-48k. All my mates then had spectrum 128k's so gave up and asked santa for a BMX the following year. On reflection that may have affected the development of my PC skills but dinnarf have some fun on my rayleigh burner.
Also I can remember being given some early art software with this new fangled 'mouse' thingy... haha that'll never catch on I thought.
DPT