Hi everyone, I just picked up an 867MHz TiBook G4 in pretty good condition (except from some of the titanium paint wearing off) and am wondering what OS would be better for it, Tiger or Leopard? It doesn't have an AirPort card nor a DVD drive but it has a working FireWire and Ethernet port and I own a LaCie FireWire 400 DVD-RW drive.
I don't own a copy of Tiger but I do have a DVD of Leopard 10.5.4 from Apple.
Thanks!
You can always dual-boot Tiger and Leopard to have the best of both worlds.

And add OS 9 for the heck of it.
I have a 1GHz TiBook which is essentially the same thing as your 867MHz with a 133MHz difference.
I have the same configuration running on it that Amethyst1 does. Tiger and Mac OS 9.2 on one partition, Leopard on the other.
If you get to frequenting this forum like most of us do, you'll see this question pop up quite a bit (I don't ever mind answering it again). The common opinion is Tiger > Leopard. I disagree with this for a few reasons. I find the performance difference is negligible, depending on both use-case and what your hardware is.
Ram, and graphics are the big Leopard killers. Anything 768MB or higher I find to be a pleasant experience. As for graphics, Leopard does just fine on anything that supports QuartzExtreme with the exception of the Geforce4 mx. I'm not sure why, but every machine I own with that chip always has weird graphics anomalies on Leopard. CoreImage is best, but doesn't really make a difference in performance (though it may
feel faster I would say this is placebo). Your TiBook has a Radeon 9000 which does Leopard just fine.
On my TiBook, though it has all three OS's I hardly ever use anything but Leopard on it. It is damn quick and Tiger provides nothing for me on it other than the ability to run OS 9 apps along OS X ones. I would say I even boot into OS 9 on it more than I do Tiger.
Really these days it all comes down to preference.
Also as a suggestion for you, I would replace the HDD for an SSD. The 867MHz one will take any size you want (under 2TB for APM of course). We usually use an mSATA with an IDE adapter. The TiBook is one of the easiest Apple laptops to take apart. The bottom panel comes right off and you can have your new drive in within 5 minutes.
That theory makes perfect sense. I think early versions of OS X (up to and including Panther?) don't even boot from USB drives.
This would explain a lot. I have actually had issues booting Leopard on PPC over USB, whereas it will do it on an Intel Mac using the same disk (partitioned APM; Intel Macs are actually capable of booting APM contrary to what Disk Utility will tell you).
I know I
have booted a USB based OS X installer sucessfully on a PPC Mac before, but I can't remember which version or even which Mac it was. I wanna say it was a 1.2GHz iBook G4 and Tiger but it was probably 10 or so years ago. I don't bother with USB anymore since I have a netboot MacMini running along with enough FW disks to start a store.