Kind of hard to recommend speakers when you don't say what you have now, what you like about what you have, and what they are lacking. Also the room size, placement, listening volume, music type and what you expect out of new speakers.
You only have 60w, that might not work with a lot of speakers if you like high volume. That also gets rid of any electrostatic speaker.
Also, if you are very happy with your current speakers, since they are over 20yo, why not just referb the crossovers? It will be cheap, and they might sound better then new after.