Linux or Solaris?

I have a Sun Ultra 5, that I got from a member of my local LUG for $50... Not a bad price, considering that if I bought one on eBay I'd probably pay that in shipping. The problem was that it had 64 megs of ram, and a 270 MHz processor. It wasn't a bad machine, but they are the lowest specs that the 5 comes in. So I turned to eBay, found a gig of ram and a 440 MHz CPU and now I have the most souped up Ultra 5 you could have, and all for less than $200. The only question then was what to put on this thing. I tried Ubuntu Linux, which I normally love, but the Ultra just has too funky of hardware, and a lot of stuff just didn't run quite right. Every time I tried to install Solaris, though, it would fail at some point. So I ordered some official install disks from Sun, for free, and they came in about a week. After about a week of using Solaris, I want to run it on everything! I'm sure it's because I'm running it on Sun hardware, but I'll be darned if it doesn't work like a charm. There is one little problem though. I don't want the Ultra 5 in my living room. I got an IBM NetVista off eBay for $20 to fill the living room position, and I use it to log in to the Solaris box. It mostly works, but there are a few kinks to work out, and I'd like to figure out how to do sound accross the network, but I'll take it one step at a time.