Can I use an ethernet bridge to connected my Emac 700MHz (osx 10.2)to a wireless network to share an ADSL braodband connection???

I was going to get an Airport card but they are discontiued or rather expensive now!! I have spotted that Linksys and Dlink do an ethernet bridge would this work??

I have heard that the dlink dwl-122 is awful so I have decided to leave it well alone!!

OR if anyone knows of another wireless method let me know

any advise would be appricated!!