dnbroxme,
I would stay away from the USB 2.0 audio/MIDI combo interfaces, especially since the firewire models are so inexpensive nowadays.
Check this out for $199:
Echo AudioFire 2: (This one does Audio AND MIDI)
at
http://www.musiciansfriend.com/produ...ace?sku=245640
Also, What sequencer will you be using? If you haven't bought one yet and you want to get a ree on to play with before you decide check out "Cantabile" at:
http://www.toptensoftware.com/cantabile/
Also, you might want to ditch the Kontrol 49 for a Novation Remote in order to take advantage of the AutoMap functionality with VSTs and sequencers alike. Very cool!
I just bought a M-Audio MIDI Sport 4X4 MIDI interface (USB) and it works great, no hiccups at all, a piece of cake to hook up. They also make a 2X2 model. Check it out at
www.musiciansfriend.com or
www.zzounds.com if you're in North America. If you're in the UK the only site I can think of off hand to buy gear is
www.htfr.com because I cruise their wax selection from my office on my lunch break each day.
Enough babble from me.
Good luck!