Hey, I'm Scott, if your not sure if what equipment you can get for guitar I'll show you. Let's start with the varieties of pedals you can get for electric:
Distortion pedals: very effective if like to rock out to music like: Nirvana, Rage Against Machine or Foo Fighters.
Overdrive pedal: this is a pedal that has got distortion but lighter and not as dirty as the distortion pedal
Chorus pedal: this is a very cool device indeed, it is used in a song EVERYBODY knows, 'Come As You Are' it's not a heavy metal guitar sound but just jazz, blues, pop, you know, those things
Flanger pedal: this gives a awesome sound, it makes the noise you make when you go 'wow wow' into a electric toothbrush, but it's probably the coolest sound ever
Tremolo pedal: This isn't my favourite, cause when ever I play a F5 or something my ear drums vibrate, it is quite cool though. A tremolo is a sound that stop starts stop starts and continues in that cycle.
Room: room pedal gives it that sound that's almost acoustic, if you heard alll apologies that the room echo sound
Tape echo: this is just a pedal that is used in songs of any genre and of chorse echoes
Fat boost pedal: this is used if you want to make another noise without distorion, it really just gives he guitar a volume boost.
Wah wah: this a cool pedal, it's punk sorta noise in a way that's lots of fun to use.
Now for accessories:
Capo: this is used if you want to make a higher pich on chords without changing the tuning.
Whammy bar: this item is used if you want to make a vibrato ith out using your fingers.
Tuner: this is used to tune our guitar.
There you go. I know it's not everything but it will do.