I too received my new Dual 1 Ghz/167 with GeForce 4 Ti. In fact I received it right after AppleInsider went down - I've actually had it for almost 2 weeks now. I ordered it with factory ram (256) and I ordered a 512 MB chip from memory-X for only $139... I've said it before and I'll say it again, do NOT order memory from Apple. it's waaaaay too expensive.
This Mac absolutely screams. It's just fantastic. Warcraft 3 is like buttah now. nice and smooth, with all effects and options turned up to maximum. iTunes will rip CDs to MP3 at 192 kbps as fast as 23x... I tend to think it's limited by the SuperDrive's read speed, too. I plan on getting a super fast burner for my second optical bay at some point, it'll be interesting to see how much it changes the rip speed in iTunes.
I was able to carry all my saved mail and my address book from Claris Emailer on my G3 over to Mail in Jaguar on the new tower, and it's all happy.
I also ran some benchmarks and got some interesting results. I used two free benching programs, CocoaBench and SpeedRun. In both cases, my tower got higher marks than any other Mac previously tested, including the Quicksilver dual 1 GHz. Check out the screens: this is my results in CocoaBench, and then comparitive results from their web site.
Here's my results from SpeedRun. My Mac is highlited in blue near the bottom.
I just found it interesting that in both programs my Mac tested higher than the previous dual 1 GHz, when there seems to be so much flak about the new one not being any faster. But when I see two different programs showing me that the new one is actually faster, I think that lends it a little more credence.
In any case it's certainly fast enough for me, at least for now. I don't need to use Classic for anything, even though it loads very quickly.
oh yeah, and AltiVec Fractal tells me I'm pushing 7050 megaflops, in 1.9 seconds. I got nothing to complain about.