get a small mixer to go into the inputs of your mpc, the gain control on the mixer will boost your guitar signal so you don't
need a DI box AND a mixer for guitar.
i know yamaha make some affordable mixers, but i think someone else could advise you better on what mixer to buy, i don't really know.
theres no point in mic'ing an amp unless you've got a really good amp ( something with valves , some people call them tubes). Although a poor amp is useful to hear yourself, unless you want to record a trashy sort of sound, for something punky for instance,you wouldn't want to sample a cheap amp.
Santana's guitar tone is all about the raw equipment - guitar, amp and touch - and his gear costs a lot, so get working on that touch if y' wanna sound like Carlos!
Morello uses lots of distortion. First thing to do if you want to sound like RATM is get some kind of distortion/overdrive/fuzz. This is available from your amp, but unless you have an output on your amp, i wouldn't recommend it for sampling, and even then maybe not. Tom also uses lots of weird spacey crazy effect sounds to great effect ( I think T.M. is one of the most sonically interesting guitarists around). This would involve efffects like Chorus, Delay, Flange, Wah, and much more. All these different f/x names can be a bit intimidating at first, which is why a multi f/x box gives you a good taster of whats available. the Zoom G1 costs about £50 (uk) and has 40 different effect programs on it. I think thats the cheapest multi f/x available, but someone correct me if i'm wrong.
oh bugger. i've gone on and on about guitar tone. yawn. sorry. one last thing on this subject - CABLES - get decent guitar cables, the best you can afford, nothing messes up your guitar signal than crappy leads!
hope this helps
