PS: You can get most of the above in kits or combos. Many practice amps have build in tuners and metronomes for example. Korg makes a combo metronome/tuner. Guitar kits come with an amp, a guitar, an instrument cable, and they sometimes throw in a bag, strap, and picks.

Another thing to consider: If you will always be practicing through headphones, instead of an actual amp, you can get a headphone amp, which can save you some cash, and provide sounds similar to very expensive classic amps like the AC30.