Speedbird, try a trial lesson.
Did so once, great fun, and was pretty sure then, microlighting wasn't for me ! (Went on to gain PPL in Cessna)
Read a book called "Propellerhead" (about £7 from Waterstones), when I was on holiday earlier this year. Great read, not sure if its an accurate reflection of what microlighting is all about, but gave me a little more insight.