I bought an OCZ Agility II 64GB specifically for VJing. Instead of putting it inside my case, I bought a Patriot Convoy drive bay and used one bay for the SSD @ SATA II speeds (no Convoy for SATA III yet). I used it last night for the first time with all my clips on the SSD and Win 7 and all apps running on a 7200RPM HD.
My method of VJing is to create as I go, starting from an empty (but highly MIDI mapped) comp, so speed is critical.
-Makes clip thumbnails viable in the file browser, where the app used to freeze for seconds while thumbnails were built. Nice to be able to quickly choose based on thumbnails now.
-No stutter when clips end and go into reverse. There used to be a small hitch when looping this way.
-Clips are super fast when triggered, and I can play with speed, direction, random frame, stop/start/restart with no slowdown. These controls alone are enough to do wild sets :-]
-No freeze when dropping new clips into the deck.
The only freezes come when triggering clips that are NOT encoded for Resolume, and it's a short freeze (1 sec?). I have been converting everything to PicVideo M-JPEG codec, but I still have some that are "bad" codecs. I'm sure DXV would also be fast, but the filesizes are just too big for me.
This SSD was $100 after rebate, so it was well worth it. For those who are curious, buy a smaller, highly-rated SSD and see how it works for you. If 64GB seems too small, just keep all your "stabs" (rapidly-triggered) clips on the SSD and longer stuff on another drive. Sometimes it's good to have storage limits, as it makes you more selective with your material.