You might be dissatisfied by the docking station's PCI bus speed regarding the video card, even for a makeshift retro desktop rig improvised from a laptop.
Is there ISA in the dock?

It's about 30Mhz, which is enough for a PCI Voodoo3 3000.

It won't be playing Doom 3, but I have a better laptop for that.
I just want those games with glide support without yet another desktop.

What about the Audigy 2 ZS notebook sb16 emulation in pure dos mode?

I know it won't be playing Doom3 (btw the Mobility Radeon 9000 can run Doom3 around 10-25fps at the least... 😉 )

Are you planning on using an external monitor for the Voodoo3? It'll be just another desktop machine if you go the docked-video-card route. It's not going to drive the internal LCD.

Have you experimented with Glide wrappers on the Mobility Radeon 9000?

I have no experience with PCMCIA sound cards so I can't expect the (awful since Live) PCI DOS SB16 emulation to work as it does through actual PCI. This is why I brought up the question about ISA in the dock so you could stick a real DOS sound card in there 😀

There is a flaw in your plan: the Audigy 2 ZS Notebook card doesn't have DOS drivers, so it won't work.
However, the T40 audio chipset can provide SB emulation atleast in Win98, it won't be native DOS but if your DOS games run fine under the Win98 command-line it should be ok, right?

If you really want to use a PCMCIA sound card, the PCMCIA Socket Service/Card Service drivers for your laptop can be found on the lenovo support page at
http://support.lenovo.com/en_US/detail.page?L … ocID=MIGR-46258

As for wich PCMCIA card you should use, click on the link just below in my signature.