@coolboymew needs to have:

1. ps/2 keyboard and mouse
2. RS-232 either DB-9 connectors or headers on the motherboard
3. 1 or 2 ISA slots
4. Normal BIOS but preferably amenable to coreboot/seabios
5. IDE connector for ATAPI CD-ROM that works in MS-DOS
6. SD card adapter that is exposed as an IDE interface, a second IDE connector
7. 64-bit x86 CPU
8. Removable RAM
9. All legacy VESA video modes (would be cool if they were accelerated)