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B&H Photo Video has the Sony SSF7000 4-Way Floor-Standing Speaker for $169.95 + shipping = $216.15 Shipped.
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B&H Photo Video has the Sony SRSBT100 Bluetooth Stereo Speakers for $94.95 with free shipping.
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Buy.com has the Sony SRSBTM30 Wireless Stereo Bluetooth Speaker for $54.95 with free shipping.

Product description from Buy.com:

The Sony SRS-BTM30 Wireless Stereo Bluetooth Speaker System is the best way to listen to music on your Bluetooth enabled MP3 players, mobile phones and PCs. This unobtrusive speaker system can be powered by AA batteries and is small enough to use at home as well as on the road.

Tech SpecsManufacturer?? Son!
y CorporationManufacturer Part Number?? SRS-BTM30Manufacturer Website Address?? www.sony.com www.sony.comProduct Model?? SRSBTM30Product Type?? 2.0-channel Speaker SystemTechnical Information Connectivity Technology?? Wireless BluetoothSystem Power?? 6W (RMS)Output Power?? 3W (RMS) per ChannelDriver Type?? 1.89″ Neodymium Full-range Driver Bass ReflexImpedance?? 4 OhmInterfaces/Ports Interfaces/Ports?? 3.5mm Stereo InputPower Description Power Source?? AC AdapterAdditional Power Source?? 3 x AA BatteriesPhysical Characteristics Dimensions?? 4.37″ Height x 11.02″ Width x 5.51″ DepthWeight?? 26.46 ozMiscellaneous Additional Information?? Bluetooth Version: Bluetooth v2.0 Output: Bluetooth Class 2 (2.5mW)
Frequency Band: 2.4GHz Band (2.402GHz - 2.480GHz)
Maximum Communication Range: Approx. 10m
Modulation Method: FHSS
Distortion Rate: Less than 1% at 1Khz
Compatible Profiles: A2DP / AVRCP
Battery Life: 11 hours

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Etronics.com has the Sony 12” Box-Dual Ported Subwoofers for $149.06 + shipping = $197.39 Shipped.
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CircuitCity.com has the Sony SS-B1000 Bookshelf Speakers for $50 with free shipping. 120 watts of power, 5-1/4″ H.O.P. cone woofer, balanced dome tweeter.

Buy.com has the Sony SRSBTM30 Wireless Stereo Bluetooth Speaker for $59.24 with free shipping.

Product description from Buy.com:

The Sony SRS-BTM30 Wireless Stereo Bluetooth Speaker System is the best way to listen to music on your Bluetooth enabled MP3 players, mobile phones and PCs. This unobtrusive speaker system can be powered by AA batteries and is small enough to use at home as well as on the road.

Tech SpecsManufacturer?? Sony Corpora!
tionManufacturer Part Number?? SRS-BTM30Manufacturer Website Address?? www.sony.com www.sony.comProduct Model?? SRSBTM30Product Type?? 2.0-channel Speaker SystemTechnical Information Connectivity Technology?? Wireless BluetoothSystem Power?? 6W (RMS)Output Power?? 3W (RMS) per ChannelDriver Type?? 1.89″ Neodymium Full-range Driver Bass ReflexImpedance?? 4 OhmInterfaces/Ports Interfaces/Ports?? 3.5mm Stereo InputPower Description Power Source?? AC AdapterAdditional Power Source?? 3 x AA BatteriesPhysical Characteristics Dimensions?? 4.37″ Height x 11.02″ Width x 5.51″ DepthWeight?? 26.46 ozMiscellaneous Additional Information?? Bluetooth Version: Bluetooth v2.0 Output: Bluetooth Class 2 (2.5mW)
Frequency Band: 2.4GHz Band (2.402GHz - 2.480GHz)
Maximum Communication Range: Approx. 10m
Modulation Method: FHSS
Distortion Rate: Less than 1% at 1Khz
Compatible Profiles: A2DP / AVRCP
Battery Life: 11 hours

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Etronics.com has the Sony SRSBT100 Bluetooth Stereo Speakers for $89.07 + shipping = $99.91 Shipped.
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Vanns.com has the Sony SSF5000 3-Way Floor-Standing Speaker - Pair - Black for $119.97 with free shipping.
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Etronics.com has the Sony Xplod XSL124P5B 12” Mobile Subwoofer for $52.07 + shipping = $68.30 Shipped.
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SonyStyle.com has the Sony Ericsson MPS75 Snap-On Speaker for $29.99 with free shipping.
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