Here is my stop list along the 401...
Belleville: Musky Pro Tackle (great ice gear selection for Walleye)
Oshawa: Gagnon Sports (wont have ice gear for awhile)
Oshawa: Sail (not a bad ice selection last year, good prices)
RadioWorld (electronics only but best selection of flasers and cameras around
Bass Pro: last resort, but worth an annual trip