To update, I have installed it on 4 machines at home. They are all still in dual-boot mode as I haven't completely figured out how to get rid of Windows without screwing everything up, but 2 of the 4 now default to Ubuntu. It's progress right?
Dual Xeon Pentium 3 Processor with a speed of 1.6 Mhz (is that right?), 512 MB Ram. It's an old Dell Dimension 530 workstation that I bought on EBay. After installation I quickly realized that the graphics card (Diamond FireGL2) was incompatible. Joy. So I'm currently debating whether to get a newer, compatible graphics card.
IBM Thinkpad (can't retrieve the specs at the moment). 256 MB Ram. This is my son's computer (he's 6) and the initial inspiration. It was old, had the remnants of corporate security on it, and was a perfect test subject for my trials.
I still haven't been able to get the internal wireless card working (Intersil Prism 2.5), but I did have an old Linksys PCI card lying around, so there is internet access. Tonight I was trying to diagnose the reason for no sound and apparently messed something else up in the process (hopefully I'll learn something from all of this). The latest error on restart was of the GDM variety, though I can't recall it specifically.
Dell Inspiron 4300. P3, 1.8 Mhz. 512 MB Ram.
This has been my work-horse for the past 7 years. Over the last 2 or 3 though, I've used it mainly to work remotely. In the beginning, I had JDeveloper (9 I believe) and Oracle 9i Server running on it at the same time. That was painful. Overall it seems to run just fine with Ubuntu. Though I probably won't be doing any performance testing (Oracle) with it soon.
Dell XPS, T5350 (I think) Dual Core Processor. 3 GB Ram.
This is my main "work" computer and has Windows Vista installed on it. I installed Ubuntu (dual, default is still Windows as it's shared) last week. Downloaded JDeveloper 11i (.bin file) and managed to install it successfully (w00t!). Next up I want to install Oracle 11g Server using this post as a guide (thanks Mr. Norris).
Performance on this machine rocks. Vista out of the box took up 1 GB of Ram. Ubuntu is running at about 400 MB. I have had no problems on this machine and look forward to learning more here...
And if you've got any resources you can link up for me, please do.