IMO, Bose makes some pretty good noise-canceling headphones and that's about it. Everything else is overpriced and underperforming. Unfortunately, I couldn't find any information on your Sony One-Box setup, so I would need some more information on how the satellite speakers are powered to be able to determine if they could be integrated with a different processor/amp and center channel/sound bar. Are they connected to the Sony One-Box unit with standard 2-conductor speaker wire? Any idea what impedance they use or what their maximum power rating is?
Given these unknowns and the fact that you weren't particularly impressed with the satellites as surround channels, it might be best to start from scratch. $999 could get you a pretty decent surround sound setup...much better than the Bose Cinemate systems.
I would suggest one of two different options...
1) full blown surround sound setup with a separate AVR, a pair of bookshelf/floor standing speakers, and a center channel to start with. If the satellites you already have accept standard 2-conductor speaker wire and if they can handle at least 50 watts per channel then you could use them as temporary (or even permanent) surround speakers to go with your new Left, Right, and Center speakers. If your existing satellites will not work with a normal AVR then you could go without surrounds until you've saved up enough to replace them. Eventually, you will also want to add a subwoofer as well. A good entry-level AVR (which has more features, flexibility, and potentially better sound quality than the Bose system, when paired with the appropriate speakers) should run you about $350. The front left and right speakers should run you about $300 for the pair. That leaves you with ~$350 for the center channel, speaker wire, and any cables you may need to buy, which is very doable.
2) If the idea of a full blown surround setup with separate AVR and individually purchased speakers doesn't sound appealing to you then I might suggest a wireless WHA (whole home audio) capable system such as Sonos or Denon Heos. The Sonos Playbar and Sub would be a good start. At $700 a piece ($1400 for both), they are not cheap. However, the sound quality is quite good, the interface is top notch, and the modular capabilities are worth it, IMO. You could eventually add a pair of Play1's as rear surrounds, which (combined with the Playbar and Sub) would surpass the quality of the Bose Cinemate systems. But, what makes them most appealing is the ability to use the speakers (minus the sub, which would always need to be paired with another Sonos speaker) individually in different rooms. So, if you ever need to upgrade the "processor" part of your surround sound setup (in this case the Playbar) to work with some new format, you can do so without it meaning that your entire system is now useless. Each speaker can simply be moved to another room and used to play whatever audio you want and the only physical connection required is the power cord. If you go the Bose Cinemate route and a new format comes out that it doesn't support, your only options are to do without that new format or to replace your entire surround sound setup. And, unlike the Sonos or Heos systems, it is unlikely that you will want to move the Cinemate system to another room in the house. To do so would mean having to provide additional wiring or purchasing additional source devices to provide audio to it.