Although the Frenchman came to Arsenal for £11 million, which isn't quite as cheap as Wright or Bergkamp's transfers, it still seems to be a complete bargain.
Henry is not only the all time Arsenal top scorer with 226 goals, but he is also considered to be the best player to ever play for the club. However, he did pull a bit of a Fernando Torres...
After Henry's transfer from Juventus, the Frenchman failed to score for his first eight matches, and many fans doubted that he could adjust to the physicality of English football. But once he broke this barrier, there was no looking back.
After his eight-match goal drought, Henry compensated with 26 goals in his first season, and he was only getting started. He won his first trophies with Arsenal in the 2001-02 season, when the Gunners won the Double. Henry played a large part in this success, scoring 42 goals in all competitions that season.
The 2002-03 season was just as fruitful for Henry, as he was voted Man of the Match in Arsenal's FA Cup final victory over Southampton, as well as being both PFA Player of the Year and the Football Writers' Association Player of the Year.
In the 2003-04 season, Henry netted both of those individual awards again, but achieved even greater heights with Arsenal. He played an instrumental role in the Gunners' undefeated Premier League campaign, scoring 30 goals in the league along with eight assists.
For a striker, Henry was surprisingly unselfish, and could give an assist just as easily as he could score a goal. His goals were incredible, and his most notable was a late long range effort against Manchester United, when he popped the ball over the defender and volleyed it into the goal from outside of the 18-yard box.
Overall, this transfer was certainly the best in the club's history. Although £11 million is expensive, it is still a bargain for a man who would go on to be the best player to ever wear an Arsenal shirt.