I've been going over this, and it's a tough call. I've ordered the Prelude to test, mostly because I don't trust the quality of the Titanium. I currently have the original X-fi fatality, which is darn expensive at the time, for sub par construction.
Original X-fi:
- Poor op-amp, and other hardware. Signal clips in certain situations (snap, crackle, pop).
- Installation is a pain.
Prelude:
- Great hardware, replaceable op-amps.
- Poor drivers from what I've seen, even though I think Creative provides them.
- Need to register card to install drivers.
Titanium:
- Expected below average hardware. Drivers work most likely.
- Pci-E seems interesting.
I'd love to see some more comparisons with the Titanium, especially against the Prelude and the original X-fi.