Tim, give the sigma 50mm a go, and thank me later. Make sure you get the latest serial number one possible - they changed the finish and tightened up QC. Mine is wonderful.
It's just so BIG.
😀
Hey, the Canon 50/1.4 isn't the worst lens in the world. I used to be the one on forums who would say, "I've never had a problem with mine!" But now I have. It's pretty sharp and affordable. I just really wish it was built like the other lenses in its class in the Canon lineup: 85/1.8, 28/1.8, and 100/2. It stinks to pay $400 for a lens and realize there's a good possibility that there is a $100 repair bill in your future.
My other complaint about it is that while it's still reasonable sharp at f/1.4-f/2, it's relatively low contrast there and gets a hazy, 'dreamy' look. Once stopped down a bit, it changes in character. Most semi-modern RF lenses in my experience do NOT have this Dr. Jekyll/Mr. Hyde personality, and are more consistent through than aperture range. My Nikkor 50/1.4 LTM does have a split personality, but it's 60 years old; I'm ok with that.
It's just something to be aware of.
As far as the 28/1.8 goes, it's a decent lens. Like I said, it's not the sharpest and catches a lot flak online, but I don't have a problem with that. It's biggest flaw in my book is that you can get some devastating flare with it that can really ruin a shot if you aren't careful.
The 17-40L I thought was a great lens. I had one for a couple years and really liked it.
More importantly, if you aren't already invested in Canon, the D700 is supposed to be a great camera.