HP dv4000 questions

hey guys,
its been a while since ive been here and done any ocing,but its always in my blood.
i inherited this dv4000 and its way slower than my old pimped out dell i had.

my goal is to pin mod this celery 1.4 dothan too 1.83 ghz im not sure if this cpu will do it as ive not seen it done before.
add 2 gig of ram,its 2700 now can i use pc400/3200 2.5L instead of the pc333/2700 2.5L?
and swap out the 4200 rpm HD for a 7200 HD

anyone see any issues?
here are screen caps from cpuz just to verify what im saying as it is very possible ive made a mistake since i havent done this in a while.

also any chance the 915 chipset i have will run a core duo?
specifically this cpu: http://cgi.ebay.com/Intel-T2250-Pen...ryZ99251QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
anyone done this?

is this to easy of questions?
i know how to do the pin mod and know about the sticky,as you see in my sig ive done it before with volt-mod.but i currently no longer have that system.
im not sure if i can use faster ram even tho i think so as teh deviders should be able to recognise it.
and the hdd is a no brainer.

now the yonah is a long shot,but i figured id ask anyhow.