The machine is a Singer Ingenuity 7436. I got mine at WalMart, but did see 2 on ebay for a lot less. Couldn't tell, though, whether those came with the bonus pack of specialty feet (which is worth at least another $150). Oddly ... the free motion foot in the bonus pack is not the one Singer sells from its web site. It's better. In fact I have yet to find any like it anywhere. Similar, yes, but none as good. I've seen this type before, just can't find them again. I sent Singer an email hoping they can tell me where to get them. I'd like a spare and a few to give as gifts to fellow quilters.
If I hear anything, I'll post whatever I find out.