In Search of a Balanced Web Development Team

This week I'm focused on selecting the web vendor(s) that will build the new web presence. What I'm finding so far are firms that are either great right brainers (the creatives), or great left brainers (the technology engineers). IS there a company out there with balanced talent from both cranial hemispheres. Oh yes, one more thing... I've been in marketing a long time and don't get sticker shock too often, but some the "you're gonna be my cash cow" pricing I've seen is crumbling the boundaries of credibility.