If you are looking for HP cast off's on a budget the Saint Vincent de Paul Thrift Store is the one to go to. I go in there and get stuff with the tags still on them.
Best Place to Buy Highland Park Cast-Offs Dallas 2008 - Salvation Army Family Store
If you have Park Cities taste and a West Dallas budget, spend a Saturday walking the aisles of the Salvation Army Family Store (formerly called "thrift store") that splits the geographical and socio-economical difference between the two 'hoods. A mere 10 minutes from Highland Park, the store offers high-quality threads and furniture at jaw-dropping prices. The old concert T-shirt selection is pitiful; the men's shirt selection reveals a general preference for polo and golf over heavy metal. But Brooks Brothers suits for under $50 and huge leather couches for $200 more than make up for the lack of hipster garb. Check periodically, as you never know when a Parkie is going to send the hired help over with a Bentley-load of last season's fashions.