Self directed 401(k) accounts do exist, but a couple of caveats usually work against an employer implementing such a plan.

First, IRS guidelines hold employers responsible for investment offerings within the plan (sec 404?).

Second, plan administrators usually charge more this type of plan. However, if you have a relatively small company and a boss that wants a self directed 401(k), more power to you.

That's my .02...GDC