How to set-up a recording studio

You all ready have everything you need to record and make a CD. Just plug the 88's audio/headphone out into the mac's line in. Record your tracks in garageband share with itunes and burn a CD.

You could also get a midi to usb controler for the keyboard but stick with the ProKeys sounds.

Since I like the sounds on my keyboard and the virtual sounds in Garageband I have connected my keyboard via both MIDI and the sound outs. This allows me to record sounds on the software instrument tracks and the Real instrument tracks.

Since you have a G5 and a nice keyboard you may want to invest a little more in a Firewire Interface. I would look for one with MIDI and audio capabilities.

There are scads of USB interfaces as well.

If you want to go a cheaper route look at my set up:
I get very quiet input and excellent gain control with the mixer and the MIDI works flawlessly, the controller adding some nice features:

• M-AUDIO - Keystation 49e - 49-Key USB MIDI Controller, touch sensitive keyboard ($129.99)
• Behringer UB802 Eurorack 8 Input unpowered mixer (cost me about $69.00)
• iMic - Griffin Technology (appr.$35.00)
• Shure and Rhodes mikes. ($200-300.00)

Kurt

If you get a interface you won't need a mixer. If you need a mixer for something else then you could get a firewire mixer. To record a real piano I would use a condenser mic into some type of interface.

Because you want to record using mic and keybord audio and maybe Midi you should just get one interface that will do both audio signal and Midi.

What is a decent, reasonable Firewire interface?

Presonus INSPIRE 1394 FireWire Interface

The Tascam US 122L may be worth a look also it has two phantom powered XLR inputs and Midi.

Dual 867 MDD / 12" powerbook  Mac OS X (10.4.8)