Snowpawz hasn't been seen for a while, especially due to them disabling their own userpage: http://www.furaffinity.net/user/snow-pawz/

Although  chrisa.wulfie may be able to help you out in finding them, as indicated here: http://www.furaffinity.net/view/13360020/

Apparently Snow-Pawz partner is  jinglez judging by some artworks and such, and that he still has a "my partner is" thing linking to Snow. So, again, that could be a good bet. And this http://www.furaffinity.net/view/15755640/ indicates that they are still in contact at the very least. Uploaded one month ago.

But, that is all that I could find. Good luck!

As for Sasha Dee. Never heard of them. So, yeah, can't help out much there.

I do know of Snowpaws and Sashadee, but unfortunately I haven't seen them abouts on the usual AU furry interweb sites as of late, but if I come across them i'll let them know

Sasha Dee used to live in Sydney. Still might. Don't have contact with them though. Maybe if you post to the Sydney Furs group on FB someone may still be in touch with him/her.