There's always the option of having it make long file names with all the tag data specified in the file name. Then you can come along after the fact and use MP3 Tag Studio to translate the file names into tags.

For instace, a file name could be:

Rush - A Farewell to Kings (1977) - 02 - Xanadu.wav

I assume that EAC lets you specify the output file name? And that your encoder will accept long file names like that?

Another option: If you don't mind typing a little bit, you can just stick all the wave files in separate directories with TRACK01.WAV TRACK02.WAV file names, and use an encoder front-end to simplify the trackname typing. I did this for a long time with my "Jack the Ripper" utility (at my home page, link below). It's feature-poor and there are better alternatives out there now, but when I wrote it it was because I wanted to do things a certain way and there was nothing else that did things exactly that way in exactly that order. I encoded a large part of my collection by doing the ripping and encoding in two stages (rip a bunch of albums during the day and encode overnight), and my Jack utility was (at the time) the only thing that let me do it the way I wanted to do it.