I realize I'm being impatient, but I sent Dell an e-mail regarding the 7800 upgrade and this is what they had to say:
Dear Kevin,
Thank you for contacting Dell Warranty Support.
I have gone through your e-mail and understand your concern.
Kevin, I apologize but Dell will not be offering the videocard upgrade
to the Nvidia Go 7800 GTX. However, for further assistance you may
contact our Sales Department.
Sales Representatives are available daily between 7am and 11pm CST at
1-800-372-3355. They will also provide you service cost details.
Once again, I sincerely apologize for the inconvenience caused to you.
If your issue is urgent and requires immediate assistance, please
utilize our 24 hour phone support at 800-822-8965.
Thank you for contacting Dell Warranty Support.
Respectfully,
Ravindra
Dell Rep ID DG1951
Dell Warranty Support
http://support.dell.com
If you have any new issues with this system, or need assistance with
another Dell system, please submit a new request via our web site -
http://support.dell.com by clicking on Contact Us - E-mail Product
Support. Submitting a new request will help ensure that your support
request gets properly routed to a technician that can best assist in
resolving your issue.