Picked up Commodore Amiga 2000

A buddy located this just in time, it was out at a scrapyard and we are about to get hit with a hurricane over here in florida. Picked up a commodore amiga 2000 with the keyboard, no mouse or monitor. I hooked it up to a tv via composite and get to the boot screen. It appears to have a scsi hard drive controller in it. I figured this would be the place to ask... It looks as if PC compatibility boards can be added to the machine, boards with a 286, 386, or 486 and some memory on a board, capable of running MS DOS. IF i were to install such a board, what kind of graphics capability would the dos side of things have? I just got started with the machine, im still trying to get it to boot up, but if it would be pretty capable with dos then i will keep an eye out for one of the cards. any suggestions to get started would be appreciated. --Devin