I have the Ampeg SCR-DI, very nice. Headphone out, aux-in and can runs on 9v battery. Perfect recording, practice and ampless giging preamp, can gets very growly with just a bit of the Scrambler.
If it's just for recording (I also use it live as my main rig), Avid Eleven Rack is a (big) notch above. It's also your USB interface or can interface digitally to your current one using spdif. Comes with a nice SVT model and a second variation, also with pedal models, parametric EQ, studio reverb and compressor, and 8x10" cab sim. Don't be afraid because it's a modeler, I setup all my presets using the front panel, it's as easy as the controls on a real amp and real pedals. For some gigs, my guitar player is using it and I'm using the SCR-DI.
If it's just for recording (I also use it live as my main rig), Avid Eleven Rack is a (big) notch above. It's also your USB interface or can interface digitally to your current one using spdif. Comes with a nice SVT model and a second variation, also with pedal models, parametric EQ, studio reverb and compressor, and 8x10" cab sim. Don't be afraid because it's a modeler, I setup all my presets using the front panel, it's as easy as the controls on a real amp and real pedals. For some gigs, my guitar player is using it and I'm using the SCR-DI.