I have dealt with many clients from Xerox' s 401k plan and in reviewing their statements I have found that their fees are considerably lower than many other plans of similar size. The Xerox plan has many fund choices from Vanguard and other low cost managers which will certainly keep the amount of fees charged to you low. Depending on the plan you have currently, you might stand to save quite a bit of money in the amount of fees the investment manager has been charging you.
Here's a link to the Brightscope ratings of Xerox's 401(k) also - and it's a Top 15% plan as well. http://www.brightscope.com/401k-rating/59401/Xerox-Corporation/60417/Xerox-Corporation-Savings-Plan/
You will now (or soon) be using the Xerox 401(k) plan, to find info about the investment options contact Xerox's Human Resources Dept.