Replying to Production quality camera?

i need a better cam than i have

my friend and i are starting a small production company (link in my sig) and we need a better camera

should i go for High-def?

if so, i know hard-drive is lame, is mini-disk ok?

i have a sony net cam now and an 8GB card

i could put the card in a better sony cam

if not hd, what would be my best bet for decent quality?

my budget is whatever works, but i cant spend much over a grand

i'd prefer to spend less than $500 because i get paid like $63 ish a weekend + whatever we make from merch

do the math, i dont want winter to be over before i have a decent camera