Sources for titanium or niobium (colombium) bits?

[cheesehead]

I'm currently in an Art Metal class. After finding some instructions as to how to anodize reaction metals, I'd like to try it on a ring.
Does anyone know a good source for cheap titanium or niobium? I'm not shy about ripping it out of broken electronics; ideally, I'd like to melt the stuff and cast it. However, titanium's a pain in the kiester to cast; niobium is generally rather rare, and not terribly popular. (Seeing as how it's normally five times the price of silver, I'm not surprised.)

 

[jacc1234]

Ebay?
http://cgi.ebay.com/High-Purity-NIOBIUM...3QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/TITANIUM-Ti-Pure-Me...3QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

 

[UnklSnappy]

Reactive Metals Niobium and titanium

Alpha Knife Supplies Lots of titanium and timascus.

 

[Susquehannock]

Reactive Metals is a good source for materials. I am a metalsmith & order from them quite often.
Not that this matters, I have met the owners in person at symposiums & they are pretty cool.

I usually make it myself, but if you want to see some neat stuff check out their Mokume Gane.

Best of luck with your art metal class.