Depends on if you're looking to use it for performance or as a dedicated controller for VST's?
I'd still look at either of the Fishman Tripleplay series, either the Wireless to connect to a computer, or the Connect to play through an iPad. The Wireless is $400US, pretty much anywhere, the Connect is $300US, and either one will allow you to use a Guitar you already own. The Wireless also has a hardware attachment for controlling hardware MIDI devices with a standard 5-pin DIN connection.
I have a Fishman Triple Play. It is good for what it is but not a be-all-end-all. I would never use it live, it is very sensitive to false triggering and not latency free on the lower strings by any means. It also requires flawless technique, something you will find out you do not have rather quickly.
For me it is a fun studio toy since I am not very good on keyboards. I don't see that changing.
There is a good thread running in Craig Anderton's forum about Midi Guitar, worth checking out.