well, from my perspective, unless the x30 is dirty cheap... I would not get it... much like a car (w/o a odometer), it ages with use and time--the battery esp. But X30 is a good machine, so it might last longer then expected.
That said, as long as x30 has the wm2003, you should be ok.
As for calender and contact, I think the default programs suck, but some people may like it. I use PocketInformant and PocketBreeze to overcome the disability of the default programs. So, that's another thing, make sure PI and PB (or other PIM software) supports wm2003.
PI has some type of Project Mang tool that you can use... you should check out their site.
Good luck.