Receiver Help Needed...Badly!

[mywxrld]

I have a very hard choice to make and I need input from everyone. I currently own an Onkyo SR-605. The main problem I have with it is it only has 2 HDMI inputs. I currently own a PS3, BDP-BX1, and Directv HD which all hook up through HDMI. This is the part I need input on. Should I replace my receiver or keep the 605. The replacement options are Pioneer Elite VSX-21TXH, Marantz SR6003, or the Integra 30.1. I have listened to the Pioneer and Marantz but have not heard any Integra. I know that Integra and Onkyo are made by the same company but does that mean that the sound produced by both are the same or is the Integra going to have a cleaner sound? The help I need is this…Keep the 605 or replace it with one of the previously mentioned. If I replace it which one should I replace it with. Any input is much appreciated.