MaCca is right. You need to decide whether you would be into guitar for a long time or just to try it out. If possible, it is best to borrow a guitar from a friend. Does not really need to be an electric. Just play around with it. If you really think you have the interest then commit to buying the gear.
Well for you budget, i can tell you that it would be hard to get the good stuff. You have to put into consideration a gutiar, an amp, picks, cables, strap. The 2 most expensive of course would be the guitar and amp. Both are equally important. A good guitar paired with a lousy amp would sound bad, a bad guitar paired with a good amp would still sound bad. You need to have a good balance. If you are into muse, you most prob would need effects and they cost money again. Best is to get a starter pack first, even though they are really that good. But they should last you for at least half a year before you start to "outgrow" it. Do loads of research before buying anything, even better if you have a friend who knows his stuff to go with you to test out guitars. Most important buy a guitar and amp that you like, not what ppl say is nice. It is you who is going to play it after all.