The best choices (of a similarly set up system for each) would be:
1) QSC $2,600
subwoofer
http://www.guitarcenter.com/shop/product/QSC-HPR151i-15-Powered-Subwoofer?full_sku=600029
satellite speakers
http://www.guitarcenter.com/shop/product/QSC-HPR122i-12-2way-Powered-Multipurpose-Loudspeaker?full_sku=104157565
2) Mackie $2,080
subwoofer
http://www.guitarcenter.com/shop/product/buy_mackie_swa1501_active_high_output_15inch_subwoofer_system?full_sku=101809622
satellite speakers
http://www.guitarcenter.com/shop/product/buy_mackie_srm350_2way_powered_speaker?full_sku=102774528
3) B-52 $850
subwoofer & satellite speakers
http://www.guitarcenter.com/shop/product/buy_b52_matrix1000v2?full_sku=103233151
If you can afford the QSC system get the QSC system because is the loudest & the highest quality in sound & build, but it is also the most expensive.
The Mackie system is better than the B-52 system, but at that price you are better off saving a little more money & buying the QSC system.
The B-52 system is by far the cheapest, plus it's the easiest. There are cheaper similarly set up systems, but they are of lower sound quality, lower build quality & lower reliability, they are not worth the money. The B-52 Matrix-1000 V2 is the best buy for a low budget. But even though it's a budget system the Matrix-1000 V2 is a banging system that's loud, clear & has hard hitting bass.
B-52 MATRIX-1000 V2 700W Active 3-Piece Speaker System $849.99
http://www.guitarcenter.com/shop/product/buy_b52_matrix1000v2?full_sku=103233151
"A complete sound reinforcement solution. The B-52 MATRIX-1000 V2 Speaker System includes two 10" two-way powered satellites and a dedicated powered 15" subwoofer. The MATRIX-1000 V2 has a built-in three-channel 700-watt power amplifier, three distinct volume controls, electronic crossover with equalization and VCA compressor."
"The circuitry is designed and fine-tuned to integrate all components for the best possible sound. There is no need to tweak or finesse settings on a crossover or compressor to make your system sound great. Simply roll the system into place on its heavy duty casters, plug in the AC, connect the two speaker cables, run two XLR cables to your mixer and you're ready to go."
"Built-in 3-channel amplifier: The 15" subwoofer enclosure is divided into two separate compartments. The front chamber serves as the cabinet for the 15" subwoofer. The rear chamber houses all of the system's electronic circuitry, which includes the amplification for all three components, power supply and preamps. The 15" subwoofer has a power handling capability of 400 watts and a nominal impedance of 8 ohms."
"10" satellite speakers: The MATRIX-1000V2 satellites are loaded with a custom designed 10" speaker and 1" titanium diaphragm compression driver. The horn" is a 90 x 60 elliptical waveguide that can be rotated 90° to optimize the dispersion pattern to best suit your particular application. These versatile speakers are pole-mountable and can sit as stage monitors. They also include 3/8" 16 tpi flying hardware for small venue permanent installations. The rounded front of the satellite speaker is a perfect fit for the convex face of the subwoofer, allowing you to stack, roll and transport the entire MATRIX-1000V2 in and out of a venue in record time."
"Transporting the system: To transport the MATRIX-1000 V2, simply set the subwoofer on its casters and place the satellite speakers on to the subwoofer's front panel, facing down. Fasten the satellites with the included locking strap using the handles on either side of the subwoofer cabinet. Place the included cover over the entire system and you're ready to move the MATRIX-1000 V2 with ease."
"Suggested applications: Mobile DJ * Karaoke * Nightclub, Restaurant, Bar Install * Corporate Audio / Video * Home Entertainment System * Live Sound System * Stage Monitoring System * Booth Monitoring System * Drum Monitoring"
