I have an inexpensive usb hp ir receiver which I have had for a number of years and I do not know if the model is still available. It works reasonably well and you might look into a usb solution. I doubt it will turn the computer on but it should work for everything else.
I am using an I5 HD 4000 CPU/GPU and I am very impressed with video smoothness, color rendition, and picture detail. But, like most posters, I do not have a second computer with an I3 HD 2500 to do a direct comparison.
Renethx posted in Oct. that to use MPC-HC with MadVR and the Jinc scaler you would need the HD 4000 and fast memory and an ivy bridge mobo. However, some poster state that they like other scalers better.
All I can say is that I doubt you would be disappointed with the I5 HD 4000, 2400 DRAM and an ivy bridge motherboard.