My Inspiron 8000 with Windows 2000 Pro just died.  I need to buy a new computer that will run the MS Dos version of Lotus 123.  I have spent thousands of hours creating macros for Lotus 123 spreadsheets.  Others people I've talked to were sadly dissappointed to find that XP will not run their old DOS Lotus spreadsheets and macros. 

I use my laptop at home, brows the Internet using Internet Explorer.  My email program is Outlook Express. I download digital picture from a camera and bank on the Internet. I also take my laptop on extended trips in a recreation vehicle.

I understand that new computers no longer come with the option of Windows 2000 Pro.  I still have the Windows 2000 pro install disk and a disk containg Service Pack 4.

(1)  If I buy a new computer with XP installed, how big a job would it be for me to install 2000 Pro over it?

(4)  If I install 2000 Pro, would I still be able to use all of the software that comes with a new computer?

I definetly need to know what I am getting into before I order a new computer.

Thanks for your input