crownd,
Just for thought - With too many "unpaid performances requests" you will find that less & less vendors will respond to your requests - everyone's efforts (in cluding yorus) are directed to make a living.
As a lift truck sales guy valued my time at $75.00/hour. This was time I had contact with customers and working on their projects - no driving time or suff like that. When a prospective customer that I or our company have never dealt with would call me as ask me to send him via fax or e-mal & needed it pronto but not allow me the opportunity to present my company, our products, myslef or the opportunity to survey his application first - I would decline or give them a "high" ball park $ as I knew all he was looking for was second or third quote to satisfy a "coporate rule" & had already made up their mind on what to they were goind to buy. Strange as it may sound I did get soem new customers when I took this approach because the prospect sensed & appreciated I was not just another "me too".