Using my HTIB Speakers with Onkyo 605???

[matthewrounds]

I am presently using the HTIB from signature for sound from my PS3 and Cable Box. Here is the link to it if needed:

Sony HT-DDW790 HTS

http://reviews.cnet.com/audio-shelf-...-32401496.html

This was great for a budget HTIB setup with 5.1 Sound. Now, I am planning on upgrading to the Onkyo 605 receiver. I would like to short term, use the present speakers with the HTIB with the new reciver but I have questions:

1. The Onkyo uses Banana plugs, the HTIB has bare wire from the speakers and sub to the receiver. How do I convert the bare wire into a banana plug? Links, How to guide, pricing on plugs, etc would be greatly appreciated.

2. If and when I buy a standalone BD player like the Panasonic dmp-bd30k which bitstreams the DTS-MA and True HD to the receiver for decoding, what kind of sound improvement will I notice over my present setup if I am still using the HTIB speakers.

3. Overall I am wondering is it worth it to upgrade my receiver if I am not going to upgrade my speakers short term (in the next 6 months).

Thanks.