I thought I did very well with my purchases -
In one 2nd hand bookshop I bought David Edding's Books Two and Three of The Elenium. Book One I have placed on order. They were AU$9 each but I managed to bargain down to $6.
In another 2nd hand bookshop I finally found Janny Wurts' - The Circle of Fire Trilogy - well Books Two and Three - Storm Warden was missing, so that is on order as well. Not so fortunate with the price this time - she drove a hard bargain - finally got them for $8 each.