I need to buy or build a CAD workstation that will run Crosslight simulation software and Visual Fortran 6.5 / 6.6. The budget is less than 5,000 dollars. It may also run Solid Works. I am looking for top of the line equipment and if it is justified will consider going over the 5,000. It needs to run Windows 2000 or XP. I need to know if there is an already built solution (Dell, SGI, etc.) or if I should White Box it. What would be the best graphics card?