Not worth it
Personally, I don't think it is worth getting a receiver with HDMI inputs. You are paying a premium for the technology right now and hardly anything even uses it. Besides, most new TVs have at least one HDMI input along with two or three component inputs. Routing it through your receiver at this point doesn't make a lot of sense. You are better off connecting it directly to your TV. When HD DVD / Blu-ray / some odd combination of the two comes out they will most certainly provide HDMI and/or component connections. Forget DVI, it is dead in the water. It lived a good but short life as HDMI is cheaper and easier to make and connect. Eventually, if enough electronics use HDMI, then at least you can get something at that time that can take in enough HDMI signals and output them to your TV for a reasonable price. Even the top-end models today only take in two HDMI connections and output one... hardly worth the thousands of dollars you need to pay. Get a good sounding receiver now and, in a few years re-evaluate your need. Maybe a receiver for $1000 will take 5 or 6 HDMI connections at that time. Right now, the main users of HDMI are the newest DVD players. DVRs, XBox 360, PS3, etc. still need to come up to speed and even then, they may opt to have those connections as an add-on instead since their market may show that component connections are much more popular, cheaper, and almost just as capable (though analog instead of digital). It is doubtful that cassette decks, turntables, or VCRs are going to have HDMI connections so, you may only need one or two connections. It is hard to say at this point. But the good thing that comes from waiting is that, right or wrong, the technology gets better, more capable, and definitely cheaper.