Say "good-bye" to medicine?

Hello guys! I finally finished my 1st year science in UBC and received the following grades on my transcript.

2004S BSC 1 1 ENGL 110 925 3.0 APPROACHES LIT 66 C+ 3.0
2004S BSC 1 1 MATH 200 921 3.0 CALCULUS 3 88 A 3.0
2003W BSC 1 2 BIOL 112 201 3.0 BIOL BACT CELL 69 B- 3.0
2003W BSC 1 2 BIOL 121 222 3.0 ECO GEN EVOL 68 B- 3.0
2003W BSC 1 2 BIOL 140 41C 1.0 LAB INV LIFE SC 78 B+ 1.0
2003W BSC 1 1 CHEM 121 122 4.0 STRUCTURAL CHEM 82 A- 4.0
2003W BSC 1 2 CHEM 123 299 4.0 PHYS&ORGANI CHEM 75 B 4.0
2003W BSC 1 1 CPSC 111 101 4.0 INTRO COMPTN 69 B- 4.0
2003W BSC 1 1 ENGL 112 12D 3.0 STRAT UNIV WRIT 72 B 3.0
2003W BSC 1 1 MATH 100 1CH 3.0 DF CALC AP PH SC 96 A+ CH 3.0
2003W BSC 1 2 MATH 101 203 3.0 INT CALC AP PH S 83 A- 3.0
2003W BSC 1 1 PHYS 101 104 3.0 ELEM PHYSICS I 89 A 3.0

It turned out that my overall GPA is around 78% which is B+ according to UBC grading system. As you can see, I didn't do too well in most of my pre-req courses (bio and english) for med school. Can you guys be honest with me and tell me if my GPA so far will be competitive ? What kinda of GPA do I need to pull in the next 3 yrs to have a competitve shot at medical schools? All the your comments are welcomed! Thanks!