Post the exact model numbers and I'll tell you.
You can use NE2000 compatible PCMCIA ethernet cards with the
cnet.device driver and some Dell and 3COM ones with the
3C589.device driver.
You can use wireless cards which use the PRISM2 chipset using the
prism2.device driver. I am not sure if the wireless card you have will be this type.
The cards cannot be CARDBUS type PCMCIA. This pretty much rules out most FAST ethernet cards (100Mbit) and all USB cards.
In addition to the hardware and the drivers you will also require a TCP/IP stack. They are usually commercial and require registration, although most are now defunct. The main 3 are
Miami DX,
AmiTCP/Genesis,
TermiteTCP If you have OS3.9 then you already have Genesis.