I'm using a Linksys BEFSR41 here. Miami works very well with the Interface settings set to DHCP and an out-of-the-box router config (hit the reset switch if it's not working). Downside is that your IP addresses aren't static. Since you only have 2 machines on the network, it might not be a serious issue. In one of the subpages of the Windoze network prefs (TCP/IP, DNS page?), there's a tiny little radio button for DHCP. Activate that, and I think you'll be ready to go.
I don't have any experience with Static networks. Static is probably a better solution, but DHCP will get you online quick.
That'll get your network connection shared, but for file transfers you'll need
Amiga Samba. The install instructions are overcomplicated. Just extract the archive to a directory, make a Samba: assign there, and add Samba:bin to your path. Then follow the guide to get it configured properly. When the guide tells you to make a script, I've found that adding
Run >NIL: smbd -D
helps Windows machines cope with the setup much better.
If I can be of any more help, let me know.
