Welcome to the forum!
Thanks for sharing your gear with us. Hopefully after you have five posts, you'll throw up some pictures.
As for "how did I do?", let me ask you - how do you like it? That's really the important thing, IMO. There's stuff out there with better specs, and stuff with worse specs. If you're happy with the performance and the cost, then you did awesome.
The auto calibration in newer receivers is a great thing to me, but that's about all that you're missing on the JBL besides some newer connections. It doesn't have the newer lossless codecs, but I think that Dolby Digital and DTS sound really good.
What are you using to watch movies - DVD, blu-ray, other? How do you have the audio connected to your receiver? Hopefully you're using one of the digital audio connections.