Options for eSata on PowerBook G4

Hello,
I have a PowerBook G4 1Ghz and I am looking to add eSata. Firmtek's SeriTek/1SM2 seems to be my only option.

Iogear's GPS702/GPS702W6 is an eSata cardbus, except mac isn't listed under requirements. When asking the technical support over Live Chat about compatibility, I was told it wouldn't work because it doesn't have the driver.

I'm no computer genius, but no novice at using my machine or peripherals either, but I just don't see why the Iogear cardbus won't work with my machine. For the more technically savvy, could you tell me whether it's possible or not?

The Firmtek is $90 everywhere online I look, but the Iogear I can get as cheap as $27.50 from B&H Photo Video. Anyone have experience with this? Maybe there are other cardbus options?

Any information is appreciated and thank you in advance.

hello

you can do this but it might be slower. http://cgi.ebay.com/Express-Card-ExpressCard-to-PCMCIA-Cardbus-Adapter-PC_W0QQitemZ290316987505QQcmdZViewItemQQptZPCA_Cables_Adapters?hash=item43983dac71&_trksid=p3286.c0.m14&_trkparms=66%3A2|65%3A15|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50

http://cgi.ebay.com/NEW-Dynex-2-Port-eSATA-II-ExpressCard-Same-Day-Ship_W0QQitemZ260405963709QQcmdZViewItemQQptZPCA_Cables_Adapters?hash=item3ca167abbd&_trksid=p3286.c0.m14&_trkparms=66%3A2|65%3A15|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50

Spotlight is not working

love cory