Making new Home-Build PC. by a beginner

2013/10/15 My 9 years old PC died. So I'm trying to make new Home-Build PC by myself.
9歳のPCが他界されたので、初めて自作PCを組んでみようと思います。
マザーボードの規格に合うものは使いまわす方針でメモ。
2013/10/20 i7 4770K→4770、SSD 256G→500G、RAM 16G→32G、電源 500W→850W。結局13万超え。

New
OS: Windows 7 Home Premium 64 bit ... 0 Yen (from a friend)
CPU: Intel Core i7-4770 BOX品 ... 30,480 Yen
MB: ASRock Fatal1ty H87 Performance ... 24,980 Yen
Memory: SiliconPower 240Pin DIMM DDR3-1600(PC3-12800) (8GBx2) x2 ... 23,520 Yen
VGA: ZOTAC GeForce GTX760 2GB DDR5 TwinCooler (ZT-70405-10P) ... 24,980 Yen
HDD1: Samsung SSD 840 MZ-7TD500B-IT (ベーシックキット-SSD-500GB-SATA-2.5インチ) ... 31,800 Yen
Power: 玄人志向 KRPW-G2-850W-90+ ... 11,960 Yen
DVD: (same)
Case: (same)
Monitor: (same)
Total: 132,558 Yen

Old
Maker: MouseComputer
Type: MDV-ADVANCE 6330GB
OS: Windows XP Home
CPU: Pentium4 530(3.0GHz/FSB800MHz/Cache1M)
Memory: DDR-SDRAM PC3200 512MB SP400-512 x2
HDD: 3.5inch SATA 160GB 7200rpm SP1614C
DVD: 16倍速DVDスーパーマルチ/ソフト付/アイボリー GSA-4160BK/Bulk
FDD: 3.5インチFDD/アイボリ YD-702D-6238D
MB: Intel915G ATX LGA775 915G Combo-FR
Case: MCJ Case/電源無 FK-508 w/o PSU(W19xD46xH42cm)
Power: ? ATX 12V 18A 500W
Monitor: 17 inch AL1714sm
*VGA: GeForce 7900 GS 512M GALAXY
Price: about 130,000 Yen + VGA 250,000 Yen