Do you have an Ikea near you? I run a home daycare as well, and we joke that this is 'the house that Ikea built'. You can get toys, blankets, change pads, kids dishes, play mats, etc. there for c.h.e.a.p. I have three Ikea highchairs in my dining room right now, and the best part is that they stack onto each other so I can easily get them out of the way to sweep the floors.
But other than that, definitely borrow or pick up second hand what you can. It would be great to have a pack n play, maybe a swing, and maybe an exersaucer in a little while, but babies use these things for such a short time that it would likely be a waste to purchase them new for a daycare babe. Are garage sales popular in your area? I get do a lot of daycare purchasing there too.
Wife to DH (06/10) and Mummy to DD (07/08).