Fishnchicks - keep saving those pennies . . . it's a waiting game . . . something will turn up and don't be affraid to make an offer on one of those boats even though they are listed for more $$$. The seller may come down quite a bit.
If you are open to other boats . . . you might consider an older 18ft wellcraft CC . . . I've seen some real nice ones for about 4 - 5k (not as nice as a seacraft, but they are good boats).