Wow, original MSPD is getting pretty cheap huh. Even fake ones are around RM160+. Seems like i need to get an ori one soon..LOL...
Well, with Custom Firmware pre-installed, dont think you need a Demo UMD anymore nowadays..So, you could save some money there..
Yes you can. Its more or less (or maybe even same) as how to install the Custom Firmware.

About which to get, with the Slim better, cheaper and newer than the Fat, cant find any reason on why you should get the fat. Definitely go with the slim..

i'm going to get my first PSP..so i did some browsing on the forum looking for good bargain...so i bump with 2 deals at the moments that interest me...

first one..

psp lite & slim set with 3.71 m33-2 firmware
ac adapter & battery
4gb memory stick with adapter (fully games, mp3, movie, software)
2 in 1 usb cable
screen protector (hori)
pouch & strap
2 dvds (up to 20 games)

RM850

second one..

PSP1006 Black Color with 3.10OE firmware
2nd hand (1++ years)
Charger
Batt
Black Pouch & Strap
Screen Protector Applied
Earphone with Remote
USB Cable
NO MSPD...

RM 600

so wanna know which one is the better deal...since if i take the 2nd one..i need to topup another RM 240 for the MSPD..so the price going to be around the first one...

opinion from y'all are highly appriciated ...