Does anyone have any experience with Lenovo's thinkpad pen pro? I'm assuming it would be a similar experience to other current Lenovo pen experiences? Need the extra power (over other lenovo products) for 3D animation/VFX work. I can pack up 64gigs of ram and 3 hard drives! Looking for pen use in Photoshop and Zbrush. Coming from using intous tablets, a Cintiq 22" (non touch), and a Fujistu T902. Any major headaches or caveats?