I have an old Gunnar Crosshairs with drop bars, 9 speed Shimano 105 triple, standard 105 front derailleur, Deore XT rear derailleur, and SRAM cassette (I know, kind of wimpy, but there's big hills where I live). I'm thinking of converting it to a flat bar and am wondering what changes I'll have to make. Will I be able to keep the standard front derailleur? Can I use about any standard mountain bike 8 speed shifters? I figure I'll have to get an 8 speed cassette. Will I have to get smaller chainrings? Will I have to mess with the cables much, or basically just shorten them a little? Thanks for any help.