This Sunday's Scripture, is published by Word Press and is one of the best available resources. Good exegesis and pastoral application, and some useful homily starters. This resource is grounded in a prayerful weeklong approach to the Sunday scriptures and preaching.
General Liturgical Resources worth having on your shelf:
Living Liturgy 2009 is a comprehensive liturgy planning guide, with great homiletic resources and reflections for each of the various liturgical ministries to use throughout the week
Companion to the Calendar: Mary Ellen Hynes' book on the calendar is the best available. I actually think it may have been written for young people, but it reflects the broadest scholarship, a global sensitivity, and awareness of civic and seasonal calendars as well as the liturgical calendar.
Jerome Biblical Commentary: If you want to dig deep into the exegesis of the Sunday scriptures, why look any further? The New JBC is a great investment, and you get a good upper body workout just by carrying it around with you!
Preaching the Lectionary: Reginald Fuller's work on lectionary preaching is one of the best one-volumes available. Ecumenical, smart, and a quick one-page-per-Sunday read.
General Preaching Links and helpful resources:
Catholic Coalition on Preaching
Dominican HS Preaching Resources on the Internet
St. Paul Center for Biblical Theology
Crossroads Initiative Catholic Bible Study:
Here are some interesting preaching blogs worth exploring: