overyourhead

First things first...
First vinyl 7" I ever bought: Heart of Stone by Kenny (1973)
First vinyl 12" I ever bought: California Dreaming by Colorado (1978)
First vinyl EP I ever bought: On Stage EP by Kate Bush (1979)
First vinyl LP I ever bought (not my money): The Sound Of Music (1967)
First vinyl LP I ever bought (my money): Waterloo by Abba (1974)
First cassette single I ever bought: Into Battle by Art Of Noise (1984)
First cassette album I ever bought: Sulk (UK/US version double-sided) by the Associates (1982)
First CD single I ever bought: Got To Be Certain by Kylie Minogue (1988)
First CD album I ever bought: Welcome To The Pleasuredome by Frankie Goes To Hollywood (1984)
First pre-recorded video cassette I ever bought: Kate Bush Live At The Hammersmoth Odeon (1981)
First DVD I ever bought: The Matrix (1999)

I've never bought a MiniDisc or a DVD single (yet!)