I am really looking forward to this.. Sinclair ZX Spectrum was my first computer, and I taught myself programming on it. It had a great feature where every key was assigned a BASIC command, which made programming really easy for an 11 year old :-))
Sir Clive is one of my heroes, despite the Speccy being obviously inferior to the C64...
Go and listen to 'Hey Hey 16k' if you haven't already: http://www2.b3ta.com/heyhey16k/
I grew up with a BBC Micro... and oh how I envied the Speccy and the C64 for games. The Beeb had a great microcosm of programming languages though: Basic, Assembler, Forth, BCPL, Lisp, Prolog, Pascal, Ample for music programming... even Smalltalk and C with the UNIX co-processor add-on. Not that I got much further than writing knock offs of Spectrum games in Basic.