Below is a list of some of my collection. It consists primarily of Technic and Mindstorms medium to large sets.  It does not contain a listing for all the parts that I have accumulated over the years.  I estimate that I have over 50,000 parts in my collection.
Set Number / Name
 Pcs.
 Own
 Total Pcs.
3800 Ultimate Builders Set 316 1 316
3801 Ultimate Accessory Set 45 1 45
3803 RIS 1.5 Upgrade Kit 65 1 65
3804 Robotics Invention System 2.0 718 3 2154
4094 Motor Movers 253 1 253
4561 Railway Express 645 1 645
7140 X-wing Fighter™ 263 1 263
7151 Sith Infiltrator™ 243 1 243
7181 TIE Interceptor™ 703 1 703
7191 X-wing Fighter™ 1304 1 1304
8001 Battle Droid™ / Star Wars Battle Droid 328 1 328
8002 Destroyer Droid™ / Star Wars Destroyer Droid 553 1 553
8094 Technic Control Center 554 1 554
8229 Tread Trekker 186 1 186
8250 Search Sub 376 1 376
8277 Giant Model Set 546 1 546
8371 Extreme Power Bike 98 1 98
8408 Desert Ranger / V2 Sport Star 284 1 284
8414 Mountain Rambler 244 1 244
8417 Mag Wheel Master 315 2 630
8430 Motorbike 315 1 315
8437 Future Car 413 1 413
8440 Formula Flash / Formula Indy Racer 413 1 413
8448 Super Street Sensation / Super Car Mk II 1408 1 1408
8455 Backhoe Loader 703 1 703
8457 {Power Puller} 960 1 960
8459 Pneumatic Front-End Loader 582 1 582
8462 Tow Truck 773 1 773
8464 Pneumatic Front End Loader 582 1 582
8466 4×4 Off Roader 1,099 2 2198
8479 Barcode Multi-Set 1263 1 1263
8480 Space Shuttle / “FOS Light” Space Shuttle 1366 1 1366
8838 Shock Cycle 243 1 243
8854 Power Crane 508 1 508
8858 Rebel Wrecker 461 1 461
8862 Backhoe Grader 664 2 1328
8880 Super Car 1343 1 1343
9719 Robotics Invention System 1.0 727 2 1454
9730 RoboSports 90 1 90
9731 Vision Command 141 1 141
9732 Extreme Creatures 149 1 149
9735 Robotics Discovery Set 387 1 387
9738 Remote Control 1 1 1
9747 Robotics Invention System 1.5 727 1 727
9748 Droid Development Kit 652 2 1304
9755 Temperature Sensor 1 1 1
9756 Rotation Sensor 1 3 3
9757 Touch Sensor 2 15 30
9758 Light Sensor 1 5 5
Totals
 76 28941
More Detail on these and other Lego sets can be found at LUGNET here – My Sets (More Detail)