Is this a good camera for astrophotography?

I need a lightweight DSLR to fit on a T-adapter (I may also need to fix it as it doesn't like to fit on my telescope properly) on a small telescope (5").
I'd love to go 7 or 5D but they can add weight.
This 60D has IR sensor and I have a remote trigger that I bought but couldn't use on my 40D. The 40D has a hot shoe receiver and remote transmitter for the shutter, but the receiver adds weight and the transmitter can't take photos for longer than 30 seconds. It's just a cheap generic brand. I may as well just buy the Canon brand. It's more expensive but I'm sure it's better.

I suppose the 60D can do everything the 40D can but better. The fps is lower though, which might make my high speed photography a bit of a problem. But I mostly do manual shoots now and I doubt I'll need fast fps for astrophotography. I'm just a beginner and am really just seeing what I'm able to take photos of. I'm also planning to sell the 40D to get some money back on what I spend on the new kit.

I'm probably getting better photos on my camera tripod so I was thinking about getting a 300mm lens too. Slow aperture is ok though? The faster the f-stops the more expensive the lens. I could go 70-200mm f/2.8 IS but then I'd have to take out a second mortgage to pay for it.

Sorry I'm thinking far too fast. I do that sometimes. The exposure simulation is also a nifty option on the 40D. I could probably get that on the 60D too right?

I'm also a band photographer so want a camera that can take clear crisp action photos but at the same time get me some deep sky objects.
I already have some image stacking programs for it. I just have to work out how to use them.

Any comments would be useful. Even if it to tell me to shut up.