If you wanna run with the archer idea, snag the feat Dead Eye from AEG Feats. Give up one attack at the end of the sequence, automatically crit if you hit with the first attack. And it can be done more than once per round (4 iteratives = 2 autocrits). Imagine this with greater manyshot and a source of sneak attack. Ouch? Ouch. Also, from The Quintessential Elf, there are rules for creating custom arrows. Precraft a bunch of Spinning Shot arrows, as each +2 above 17 adds a point of damage. Craft check of 37 = +11 damage (you get +1 at DC 17). And if he wants an archer turned up to 11, see if you can get the Arcane Archer from pathfinder okayed, then use my gish build with War Weaver. It nabs full arcane and divine 9's, fractionally BAB 16 by level 20, and floating around here I have one that's got 2 free levels at the end that also nabs Imp Evasion and Imp Uncanny Dodge. If you like that build, let me know (I don't think it has War Weaver though). The War Weaver gish is either on my "Interest in a Gish Handbook" thread, or the War Weaver guide in "Handbooks" childboard.