I've dealt with a RaQ2 in the not too distant past.
The problem I had with them was that they're MIPS machines, so any RPM's you load to them usually must be MIPS based.
I was able to install PHP without any problems through an RPM. MySQL shouldn't be a problem either, as long as you install MySQL first, then PHP.
Another sore point I have about them is the support really stinks, at least from the host I dealt with. They hid the Apache source on your machine so you didn't mess with it, and they wouldn't offer to install anything or offer answers because it would break the warranty on the RaQ.
If you try to add anything to the RaQ beyond the web-based admin, you're usually out of luck with any support. I'm still trying to figure out how the Cron processes work. Besides backups, I've never got a sucessful Cron job to execute.
This RaQ2 was pretty reliable though, and had a 30 gig bandwidth limit. It is used for image hosting, and has rarely, if ever, crashed.
[This message has been edited by SneakyDave (edited 09-20-00@10:22 am)]