The Canon T90 uses FD mount lenses, while all Canon DSLRs use EOS mount lenses. Unfortunately this does mean that your lenses will not fit on a Canon DSLR. I hope this helps!

This camera uses the Kodak USB cable model U-8 to connect this camera to your computer. We don't sell this cable, but you could try contacting Kodak directly to see if you could order this cable from them. I hope this helps!

I would need to know the number and types of inputs and outputs on both the TV and your surround sound system in order to get you a definitive answer.

With that being said I am guessing that your surround sound system doesn't have any HDMI inputs or outputs. If this system does have an HDMI input and output just connect your signal to your surround sound system to the input, and then run a second HDMI cord from your surround sound system to your TV.

Otherwise in order to get digital sound you will need to get an adapter that will let you plug in the digital audio signal from your TV to the input on this adapter, and then outputs the signal via a fiber optic cable that runs to your surround sound system.

I don't believe we sell one of these adapters. I hope this helps!

Without knowing the exact model numbers it would be hard to say definitively what remote would work for you. With that being said it sounds like you need a universal remote, and these remotes come in a variety of features and prices.

I would suggest going to your local Best Buy® store, with your model numbers, and get some suggestions from a home theater expert there.

I should also say that it can be a complicated process setting up a universal remote to control multiple electronics, and if you aren't comfortable doing this yourself you could arrange to have the Geek Squad® come out to your home to set it up for you.

I hope this helps!