Answers:
Logmein (www.logmein.com) is pretty well brought-up. Works over http, making it work over most firewalls. Free remote control, and a rewarded book beside extra features available.
Previous version used turn disconnect you after a while, but I didn't enjoy any trouble next to the concluding updates.
Yes, LogMeIn.com free portrayal will serve you powerfully. Faster after remote desktop built-in in XP.
VNC and TightVNC hold a much longer track transcription than most other remote control software packages.
They are both free. RealVNC have an added wage performance, but most are fine near the free ones:
http://www.tightvnc.com
http://www.realvnc.com/