If I were you, I'd stay away from the Book of Exalted Deeds. The book is full of broken stuff, which is supposedly balanced by the DM's ability to take it all away if you ever let someone else sneeze without saying "bless you". IMHO it's a fight waiting to happen, which will cause conflict within many groups. Don't bite that golden apple.
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You can do fantastically well with just one spell and one Eberron feat: inspirational boost and Song of the Heart. If you want to survive with lower Int and/or Con, it's just one more feat to take Melodic Casting. That leaves you two free Feats if human, or one if you are some other race.
I personally like the Bard Archer, and shortbows are perfectly capable of dishing out the damage, since most of your damage will come from flat bonuses instead of extra dice.
If you're concerned that you might find yourself in melee, consider the Barbarian 1 / Bard 6.
If you're not concerned about melee -- and with that party, I don't think it should be much of an issue -- then just go straight Bard 7. Being able to cast haste will nearly double your party's damage output (for 7 rounds). Melodic Casting is important to cast while keeping your song up, so take that. Now the build looks like:
Human - Str 14, Dex 14, Con 12, Int ??, Wis ??, Cha 16 (15 +1 at 4th level)
Feats:
1/ Melodic Casting, Point Blank Shot
3/ Song of the Heart
6/ Rapid Shot
Spells:
0/ Dancing Lights, Detect Magic, Message, Prestidigitation, Read Magic, Summon Instrument
1/ Cure Light Wounds, Grease, Inspirational Boost, +1 free
2/ Glitterdust, Mirror Image, Suggestion, +1 free
3/ Haste, Glibness (for combat days vs. social days)
Cheers, -- N