How bad does your guitar amplifiers sound? Tube or transistor? Paper or plastic? Large or small? There are hundreds of stomp boxes and almost as many guitar processors. They all do what they are supposed to do depending upon what you want. Then there are are also software plug-ins for manipulating your guitar in non-real-time. One of the best guitar processors I created was in the control room during a session. I utilized a blown up power supply (bad rectifier bridge) utilized a couple of alligator clip wires across the input to a UREI 1176 cranked up all the way. Great fuzz & sustain and was exactly what the song needed. So some broken things work well as a guitar processor.

Stripping wires with my teeth
Mx. Remy Ann David

I have a very good amplifier! Fender CustomShop Vibrasonic and it sounds very nice but I don't have enough good equipement to get a good recorded sound of it. So i'd like some guitar preamp such as line 6 pod to record directly..

Rocktron Chameleon was very cool.

Whats causing the recordings to be bad?
Bad mics?
Bad interface?

I don't know but it just don't sound good! I have a Firepod with SM57 an AT35 but really have a pain getting a good tone!

have you tried a pod? you can find them on craigslist. a good starting point

what i have been using for my recordings as of late is guitar rig 3. you can find it for a decent price online... i love it.