SHLove16, I hope my previous answer didn't put you off.
I've found the Rods Onyx to be hardier than anything else in my reef. I had a few problems early on and they were troopers the whole time. It also has something to do with being born and raised in the aquarium, rather than WC (wild caught).
ReeferMO85, the Picassos and Snowflakes come from different places, so you'll need to search out local or online sources for them.
For Picassos, I would suggest locating a local ORA dealer, since it comes from there. Since they are fairly new and have good demand right now, the prices are a little elevated. You can visit ORA online at:
http://www.orafarm.com/ordering.html.
For Snowflakes, I've been told that they come from England and are pretty rare. The reason for the high cost is "high demand and low supply". Since most dealers can eventually sell a pair for around $500, they see no reason to sell for less.
In both cases, there aren't secondary farm markets for them yet. If that happens in the future, the cost will likely drop.
Good hunting!
Boyd