Heineken Cup newcomers Connacht Rugby are up against the most successful club in the history of the tournament, but welcomed Toulouse as Pool 6 opponents.
"This is an absolute dream draw for us in our first season in the Heineken Cup - mighty Toulouse will be coming to Galway, you could not have asked for anything better," said Director of Rugby, Eric Elwood.
"The Heineken Cup is the best club competition is Europe and we have been drawn with three fantastic teams, although it might have been nice to have a break from playing Harlequins and coming up against my good friends Conor O'Shea and John Kingston yet again.
"We have played Gloucester in a pre-season friendly in the past and while these three teams present great challenges we also see it as a great opportunity now that we are finally in the Heineken Cup."