so i'm in the market for a new frame, something mid-level, mainly for road duty, but able to ride on the track (i realize components are a big factor in that ability, and i don't plan to skimp). i don't know if i want lugged steel or aluminum, but the choices in my range that fit my needs/wants best seem to be the bianchi pista concept, or the de bernardi thron. any input? also, there's a veloce frame on ebay that's my size, but the seller doesn't seem to know much about it, and neither do i. any input? i really don't want to spend more than 5-600 on the frame, since that would cut into my wheelset budget.