As a studio guitarist, one of the best guitar products I've used has been the Johnson J-Station. With a bit of patience, I'm able to set up very useable modeling and effects for both my guitars and bass (yes, it has several bass amps/cabs included). For $150 or so, it was a cheap, quality, one-stop, 24-bit solution to those situations in which micing my guitars or bass was difficult or impossible.
The J was discontinued last year, but it's still available with some searching, and many guitarists, like me, still sing the praise. It's worth a look if you're in the market.
Best,
J.