Here Kennah, I'll also try and do some tutorials on all the different types of connections cause I found fans, USB and some other connections a bitch to do well.
Connectors
1 and 2 pin Dupont Connector - Used for header connections such as front panel connections and temp sensors
10 pin Dupont - used for USB/Firewire headers
Minifit Jr - connector for 24-pin Main Board, EPS and PCI
Molex Disk Drive - the good old ugly 4-pin accessory connector
3 or 4 pin Fan connector - fans!
Crimp Pins
Male and Female ATX - for the Minifit Jr. Connectors
Male and Female 4-pin Molex - for the Molex Disk Drive connectors
"Spring" Fan Pin - crimp pin for fan connectors, easier to insert and remove than Lutro0's fan connectors
"Lock" Fan Pins - These seem to crimp better and make a more secure connection but are very hard to disconnect once connected
Dupont Pin - For all header connections
Sleeve and Heat shrink
MDPC has the best stuff but is hard to get. At minimum try and find the same 4 to 1 heat shrink so it creates a nice tight wrap on the cable. I also would recommend getting
pre-cut heat shrink as well as some regular heat shrink because the pre-cut stuff makes it so much easier and neater for the individual sleeving.
Sleeving
Heats shrink
FrozenCPU Dual Head ATX Connector Removal Tool - broke the Minifit Jr. (24-pin, PCI, EPS connectors) removal side but the fan pin removal side is still good
Official Molex Minifit Jr Extraction tool - just ordered but its the same one you would get from dazmode or MDPC
Dual Ended Universal Molex Removal Tool
BIC Lighter - for melting the ends of sleeving
Canadian Tire Heat gun - not necessary as you can use a lighter for the heatshrink but it was on sale for $20
Molex Hand Crimp Tool - I tried a generic one and it was terrible, this one is simple but fantastic
Needle nose pliers
Sharp Scissors
Wire stripper - I use a klein tools 16-26AWG stripper I picked up a home depot
OPTIONAL
Lutro0 Spacing Tool
Also if enough people are interesting I will do a full write up with pics and video tutorials