I think the question was simple enough.

1-Centurion Ironman or Lemans/Lemans RS. Bring $200 and start at $50, go up per model/condition.

2-Miyata/Nishiki/Fuji/Panasonic. From uprights to road bikes, $25-$100.

3-Old Schwinn cruiser bikes. $20 to $50, because rust comes off in most cases.

Also, just follow roccobike around on any given Saturday. He's the master.