Todd at Big Daddy's a great guy - will have no problem buying from him.
If investing in a "Molex" crimper, you will be up over $100 for those. You can get several generics including the Waldoms in the $16 and up range. If you were replacing contacts by the thousands, I would seriously consider buying the pricey ones.
The Molex with the "locator" is an awesome tool - it holds the contacts for you, has built in wirestops and crimps both wire and insulation at same time... and is sized to properly crimp the 0.156" contacts correctly on the first try. Can often pick up used ones on ebay in the $20 range. Watch for HTR-2445A.
Just checked ebay - nothing worthwhile today but watch for them. The current listing for $51 is missing the locator so make sure they are complete when watching for them. Replacement locators are in the $20 range.