CarnDriver.mobi seems ok
wifihitech seems just too long. first you have a 'wi', then a 'fi', and then a 'hi'? I would die of exhaustion just typing in all the i's
retireat35 is...I don't think you'll find buyers for it
but for a newbie, I think you've regged decent names. Most newbies reg something like abc256.com or something with huge TradeMark issues (I did!).