b&k is always a great choice--best avr for two channel that i've heard. fewer bells and whistles than the mass market asian stuff, but much better built. the 307 and 507 units are generally available used for $500-$1000.
i'd also consider arcam (250 or 350), which are also very well built, excellent for music and comparatively inexpensive used.
i'd also consider arcam (250 or 350), which are also very well built, excellent for music and comparatively inexpensive used.