Computer repair guys

[Forrestandjen07]

hey, im an A+ tech

and just finished my first paying job

my only problem is i do not know what a fair charge is of price

here is what i did

it took me 4hrs yes 4hrs, thats how big of an A-hole this computer was being

it needed an Xp re-install on it, after many hicups and numours complaints from the machine it got it on there

i am also installing a legal version of Office 2007

so

1.Xp pro install with valid key
2.Office 2007 install with Valid key
3.4hrs of work for the OS install, plus additional hour or so of Office install/Xp Updates

what would be a fair charge?