Computer 2006 – December 2014 (8 years)

Monitor      = 22" Acer 1680 x 1050 and previously 16" SyncMaster 753DF 1280 x 1024
CPU          = AMD Athlon 64 X2 5400+ (2006)
Motherboards = M2N–SLI
GPU          = NVIDIA GeForce GTX 550 Ti (1,924 benchmark)
Ram          = 3GB DDR2
HDD          = 500 GB Seagate 3GB/s
Power Supply = 600 Watt (OCZ GameXStream OCZGXS600)
Case         = 7.5 x 19 x 16.75 tall. old. 2006? No brand name on the box.
CPU Cooler   = ?
OS           = Windows XP and later Windows 7 SP1 Home Premium

New computer (Completed December 2014) (age 5.5 years)

Monitor      = $212.36 Acer 27" 1920 x 1080 (1.78:1 aspect ration). Later, 2/2/17, added two more monitors (Samsung LS27F352FHNXZA).
CPU          = $229.99 i5 – 4690K
Motherboard  = MSI Z97 g55 sli motherboard
GPU          = $199.00 GIGABYTE GeForce GTX 760 (from newegg) (4,968 benchmark), Later (2/2/17) $209.99 GeForce GTX 1060 3GB (8,505)
Ram          = 8GB DDR3
HDD          = $121.47 WD Green 1TB 6GB/s. 7200 RPM.  $84.99 250 GB WD Blue SSD installed on 5/23/17.  $119.99 SAMSUNG 860 EVO Series 2.5" 1TB purchased on 11/24/18.
Power Supply = $79.99 750 Watt Corsair CX Series
Case         = Cooler Master HAF 912
CPU Cooler   = generic Microsoft.
OS           = $95.44 Windows 7 SP1 Home Premium
Keyboard     = $49.88 CORSAIR K55 RGB Gaming Keyboard (PDF of instructions)
Mouse        = $43.99 Razer DeathAdder Chroma, Later, 11/6/19, $9.99 PICTEK Gaming Mouse Wired.  Later, 7/13/20, $21.99 PICTEK Gaming Mouse Wired
Speaker      = $28.47 Logitech Z313 Speaker System
Headset      = $30.99 Sades SA902*
Mouse Pad    = $15.99 Kensington Duo Gel Mouse Pad with Wrist Rest - Blue (K62401AM) Purchased 8/2/20.

color = purchased
Price listed is what I paid at the time of purchase.
* = Not sure when I bought this or what I paid.

New computer (Planned for 2019 [not gonna happen])

Monitor Acer - XR382CQK bmijqphuzx 37.5" 3840x1600 75Hz
CPU i7-8700K 3.7GHz 6-Core
GPU RTX 2060 super
Ram 16 GB DDR 4
HDD 500 GB SSD
Case HAF with clear side
OS Windows 7 SP1

I'm writing off the Deathadder and Razer brand for now.  Believe it or not, the mouse I am really enjoying is PICTEK Gaming Mouse Wired.  It feels comfortable and the click sensitivity is just right which is extremely important to me.  The Razer had a tendency to zip to one side of the screen or another, the huge amount of bloatware, cost, the tendency to double click after a single click, and difficulty to clean.  This is reported by others and with multiple Razer mice I had.

I do have one small negative for this mouse.  The dpi sensitivity can be a little too easy to click as it is close to the mouse wheel.

Update 7/13/20: New mouse is PICTEK Gaming Mouse Wired.  This updated version from PICTEK has two sensitivity buttons instead of 1 and has 5 sensitivity levels instead of 4.  The look is still the same, but the click sensitivity seems to be just a little higher, but still good.  The DPI sensitivity level is 1200-7200 DPI.  The previous version was 1000-3200 DPI.