I got an USB SmartMedia Reader/Writer
Can write to SmartMedia faster than the GP32, ideal if you don't want to keep connecting your GP32 to the PC. 98/ME/2000/XP/Mac £14.99, from www.gbax.com
It´s definitely worth it, it is not so much faster, but it is very easy to use (on XP and 2000 no extra drivers are needed), the reader writer works just like those usb portable memorykeychain drive thingies that you see advertized all over the place.
Plug it in and an extra drive letter is added to your explorer, works like a charm in Windows98 too, only you need to install some drivers that are on the cd that comes with the reader/writer on that older OS.
With help of the unpack utility you can also install software packages without having to connect the gp32 itself and use the gp32 linkup software.
I use both actually. But my smc reader writer a bit more for installing that extra atari st disk image, or that d64 tape or disk image.....
It´s a good buy, works nice from within explorer or windows commander (total commander). Especially if you have more sms´s you can continue playing your gp32 and still be busy copying files and organizing stuff on the other cards.