Eek you don't wanna pay that kinda price...how about getting the game for freeee?
That's right - you can download the game in the downloads section of the parent site of these forums!
http://www.armadafleetcommand.com/botf/index.php
Sign up to the forums, then log in.
You can't access the downloads section on the parent site unless you first log in, so don't even try.
Once you've logged in, click on the downloads link at the top of the page, then click on the "Birth of the Federation 1.0 Backup" link, then click on the "Birth of the Federation" link and download it.
You then have a choice - you can either burn the file to a disk with Nero and play it off the disk, or you can mount it onto your computer (Don't ask me how I haven't got a clue) - mounting it on your computer will apparently make the game run much faster - as much as 200% faster - simply because it doesn't need to access the disk to run the game.
Downloading the file however is completely illegal IF you have not bought the game - seeing as you used to play the game, I can assume you did buy it though.
There is a thread with a guide for mounting the game onto your computer here as well:
http://www.armadafleetcommand.com/botf/index.php?name=Forums&file=viewtopic&t=440
Good luck.
*Edit - damn you Jig!
*