Sega DreamCracked
According to this article, certain hackers have hacked their hearts out, and have cracked the Sega encryption mechanism for Dreamcast games. If you burn a certain software onto CDROM, and run that in your Dreamcast, it allows you to run games downloaded from the internet that you burn onto another CDROM. The only problem: Dreamcast games come on discs similar to DVDs, and some games won’t fit entirely on a CDROM. The answer in most cases? Just remove the soundtrack. No word as to whether DVDRAM drives will work to burn DVDs with the games on them.
So you can spend $400 for a low-end computer, $200-$300 for a decent burner, $300 on a Dreamcast, and pay upwards of $80 a month for DSL so that you can download the games within a reasonable amount of time.
OR you can just spend the money on the Dream cast (which you’d have to do anyway) and simply buy the games you want for like $50 or something apiece.
The latter option seems much easier.