I've never had a problem ordering from Newark here in the US, which
is Farnell/Element 14/name of the week.
I used to have big problems trying to order from the big boys Avnet, Arrow,
Allied, etc., but again at least in the US, they will take my order now.
Still you can run into ridiculous line or order minimums though.
I remember in the 80s trying to order from Wyle Laboratories. I had
to drive down to their building, sit in the reception lobby and hand them
a cashier's check for the parts I wanted. Not an easy way for a hobbyist
to do business back then.
Frankly, I'm starting to order direct from the manufacturer for a lot of things.
For example, I started ordering various LED displays direct from Kingbright:
http://www.kingbrightusa.com/Default.aspbecause their stuff seems to be out of stock a lot at Digikey and Mouser.
Not only were they happy to take an order from me from their web site,
their prices were *cheaper* than the distributors. I'm not sure how
undercutting your distributors makes economic sense, but I'm happy to
see it.
Scott