so i've been recording with a Line 6 TonePort UX8 since it came out and I've really been pleased. But now I'm interested in a control surface and i've stumbles across the following:
TASCAM FW1884 FireWire Audio/MIDI Interface and DAW Control Surface and more Sound and Recording Cards / Audio Interfaces at

or the:
M-AUDIO - ProjectMix I/O - Control Surface with Motorized Faders and 18 x 14 Audio Interface

I'm not hell-bent on making the switch. I'm just curious if anyone has used this product or one like it.

Also, do you recommend keeping my recording interface and controller separate or is an "all in one" system like this good idea.