I'm using Vista right now and I love it. Just my opinion though, so you'd have to try it yourself. As far as stability... I've been running Vista RC2 (beta) for over 3 months now and it hasn't crashed once. For whatever that's worth, Jonathan
agree, i'm running the RC beta of Vista on one of my backup trading PC's and its both fast & sweet looking. Stable, no crash issues at all in the 3 months I've been using it. I also like 64bit IE7 very much too. You need a decent spec PC to run it efficiently though, as it does carry a reasonable memory overhead compared with XP. I'm running it on a dual xeon 3.6ghz 2GB and have no complaints at all. Vista is fast to load, very fast to run.
I've used the beta on another machine for some time. Thus far no problems worth mentioning. After vendor migration/ porting and SP1 I'll make the official change. Call me a skeptic but I've been down this road before. ....'bout a dozen times.