1x A1200 from new, when they were first on sale in the UK.
1x 1230IV also from new, while at Uni for work (was 8 mb now 64 mb)
1x Flicker Magic board, from new when my microvitech monitor broke down. (had to rely on VGA monitors since)
1x Elbox 4xEIDE adapter, from new
Internal Zip (replaces knackered internal floppy), serial mouse adapter (PC serial mouse replaces knackered original mouse), 3Com PCMCIA network, compactflash ssd... Cant believe it all still works!