Can someone help me decide if I have a KeyLogger?

Hello I have searched this question and have not been able to find a solid answer. If you are going to reply like everyone else with "You don't have one, don't be so paranoid" or "It is unlikely you have one" or "Get Anti-Virus" then don't bother replying. I have scanned multiple times with MacScan and over 9 scans it has found 27 threats but deleted them. I still have reason to believe someone KeyLogged my computer. I haven't opened up weird files but I heard people can install them through your wireless internet which I know multiple people that know mine. I wrote down all the activity from my log and the Process ID numbers along with its root. Can someone check over my Activity and tell me if there is anything I should be aware of? Thank you.

P.S my name is Troy and thats the user they are with, so thats why it says Troy on some.

Process ID/ Process Name / User
1 / launched / root

10 / kext / root

11 / notifyd / root

12 / syslogd / root

15 / cupsd / root

16 / cron / root

18 / update / root

19 / SystemStarter / root

22/ securityd / root

25 / mDNSResponder / _mdnsresponder

27 / KernelEventAgent / root

29 / hidd / root

32 / dynamic_pager / root

34 / diskarbitrationd / root

40 / autofsd / root

43 / AntiVirus / root

46 / distnoted / daemon

48 / coreservicesd / root

66 / launchd / troy

70 / blued / root

85 / hpusbmond / root

103 / AirPort Base Station Agent / troy

108 / Spotlight / troy

112 / Dock / troy

115 / ATSServer / troy

117 / pboard / troy

125 / iTunes Helper / troy

126 / GeekTool / troy

253 / BBDaemon / root

335/ AppleService

496 / DockSyncClient / troy

741 / mdworker / troy

919 / authorizationhos / root

920 / SecurityAgent / _securityagent

921 mdworker _spotlight

Nothing looks out of the ordinary. What reason do you have that makes you believe a keylogger was installed?

If you are convinced you have a key logger, format the drive using Options to zero the drive and do a clean install. But as staff says all looks cool.

A little old but still helpful: Mac OS X: What Are All Those Processes?
Nothing in your list looks odd.

And get rid of the antivirus.