Get a 8.5-9' 5-weight combo. (That's a rod, reel and line put together for you and ready to fish.) The cheapest outfit I would recommend is the Scientific Anglers combo ($80-$90.) Bass Pro and Cabelas have great combos, too.
Buy a 9', 3X leader, and a spool of 3X tippet. Add a few topwater spiders and small woolly buggers and nymphs (#8-#14.) For tools, all you need is a line clipper and hemostat.
Hit the pond first and get comfortable catching bluegill and bass before you go near the running water.
Good luck!