The quick and dirty way is to use the donation-ware BootCD:

http://www.charlessoft.com/

which lets you make a bootable disc image and put some things on it apart from the system. Trial and error will show which of the things you put on it work and which don't.

A better but harder way is to create a bootable volume from scratch and burn from that. In theory this is the procedure:

- First get a hard disc or partition that you can reformat and use temporarily just for this.
- Install OS X on it.
- Boot into it.
- Install everything you want on it.

Check the size of what is on it. It must be less than 700 MB total (the capacity of a CD). This is the hard part.

If it's too big, I can't say how to make it smaller. It will probably be a bit under 2,000 MB. In that case you have three options:

- Repeat the whole procedure, minimising what you put on it.
- Throw away whatever you can from it.
- Leave it big but burn to a DVD instead of a CD and boot from that instead.

That's the easy part:
- Put Toast into Mac Volume mode.
- Click once on the icon of the volume that has all the new data you have created.
- Drag it and drop onto Toast and burn it.

You can also burn from Apple's Disc Utility.