OK. I need to make a computer. All I need it to do is run a game... (Transport Tycoon Deluxe) It requires:

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IBM PC 486-25Mhz or better with at least 4 MB of RAM

CD-ROM drive (the game can be run without a CD, however, if all the files are manually moved to the hard drive)
Hard drive with at least 4MB of free space for a minimal install

Mouse with at least version 8.2 of the Microsoft mouse driver

VESA-compatible SVGA card and monitor supporting 640x480 mode in 256 colors

MS-DOS 5.0 or better (although I'm sure other non-Microsoft DOS such as DR-DOS or FreeDOS would work)
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How much will it cost me ($AUS) to get this going??

I want to play against my friends, but the game only supports serial or parralel play...

Thanks All,