I've done this (except for having to swap forks). Here's what you need:
Handlebars (Duh!)
New stem. Road bars are almost always 26.0 mm or larger. Your current stem is 25.4mm clamp. Need a stem to match the bars.
Brake levers/shifters. Shifters must match rear for number of cogs. Might be hard to find if you have 8-speed. You could use bar end shifters and non-shifter brake levers if you like to save money.
New Fork, of course. Try to match the geometry of the old fork or the bike handling will change.
Cables and housings if they don't come with the brake levers/shifters.
Travel Agent cable pull adapters so you can use road brake levers with your V-brakes.
Bar Tape.