Custom desktop PC set up worth 50k

[gearspeed]

Mabagal na itong desktop pc ko which is worth 70k during college days.

My old set up was
Pentinum 4 3.00Ghz
512 RAM
Windows XP Professional
DVD writer by Sony
DVD rom by Samsung
D-link modem
ATi Radeon Videocard
Asus Motherboard
Imaster pero pinalitan na.

Ito balak kong specs

Intel i7
1TB hard disk seagate
8gb memory
Geforce video card probably worth 5k
DVD writer sony
DVD rom samsung
Windows 8 OS
Motherboard(wala pa akong alam na brand basta yung sinabi ni GH na with six or more SATA sockets (with RAID options), eSATA ports, USB 3.0.
Power supply ano ba magandang brand nito?

Sobra sobra na ba or kulang pa yung 50k dito?

Yung pwede pang gaming din at mabilis yung pc.

Thanks.