It will be the third time he's linked up with Tigers boss Peter Taylor, who has signed the 5'10" Scot twice before.
The first time was while Taylor was manager of Southend, when over 100 goals in 5 years for Queen of the South persuaded him to spend £250,000 on bringing Thomson to England. He scored 29 goals in 88 starts and 36 sub appearances before moving to Oxford on a free transfer in 1998.
He was there for just a year, scoring 7 goals, and then Taylor took him to Gillingham in a £25,000 deal. He scored 14 goals for the Gills before joining QPR almost two years ago, and he's scored 29 goals in all competitions for the Loftus Road side, 4 of which were scored this season.
Meanwhile, Taylor says that he is also looking to bring in a defender, reportedly from a Premiership side, to help City's promotion challenge. He's also on the lookout for a goalkeeper as Saul Deeney's loan spell finishes at the end of this month.