Well, I'm still undecided. I've read through literally hundreds of posts on dpreview.com comparing the two and I'm still not completely decided. Most people are saying they are both awesome so go with whichever you have lenses for already. I've never owned an SLR so I have no brand preference at all. It seems the 10D is more suited to the more professional photographer, so maybe the D70 would be better for me just now. It's all going to depend on prices probably. If my bro's friend can get me the 10D cheaper than the D70 then I'll go with that seeing as I need to save as much cash as possible at the moment. Anyway, I'm sure I'll love either.
I'll be using a Sigma 18-125mm nomatter which I get - perfect lens for me considering my budget and I've seen some great reviews. Slight vignetting at wide angle from samples I've seen, but easily fixed in Photoshop so for the price it should be cool.