For supplementary light to keep your plants in veg after 10 to 12 hours of direct sunlight there are alot of options. To me it depends on how many and the space you need.
T5s will work great for a larger space, but are expensive in the fact you need a ballast.
If you plan on growing them outside and are just looking to supplement for a few weeks in the early spring I would suggest the cfls mentioned above, there is no ballast cost and you can simply find regular fixtures, desk lamps for example to screw them into.
If you are looking at making a full time space for vegging, a lower end LED might be the ticket. I love my Mars TS1000. They are around $200 CAD.
Asking about lighting is always tricky, everyone has their own way. There is no wrong way as long as the output is sufficient for your needs. There are expensive and low cost options both in terms of operating costs and upfront capital costs.
