The Sylvania are really hard to find at a reasonable price these days, and if you do go that route you'll need to get the Sylvania/Osram bridge (only about $14) so you can update the FW on the strips - there are some FW fixes that you'll need/want. I have a bunch of them that I got for around $24, but I think that ship has sailed.
There is also a more "DIY-ish" approach that has the benefit of drivers created by one of the HE staff. Here:
