I also used to be scared of roller coasters, but I got over it last year. I'm still not that big a fan of them though, mainly because they're not long enough - which really bites when the park is crowded & you've been waiting for 30-45 min!
I grew up in Florida so my exposure to roller coasters has been Islands of Adventure & Busch Garden, I went to Busch Gardens less than 3 weeks ago. Of all the coasters I've been on, Montu was the best. After riding the new wooden roller coaster as Busch Gardens I must say I'm NOT a fan, much too noise and bumpy.
"Treason doth never prosper, what's the reason? For if it prosper, none dare call it treason."
Sir John Harrington (1561-1612)