My experience with Tokina's lenses show them to be contenders for your kit. Full frame format DSLR camera owners should consider only FX models for compatibility reasons. APS-C-format users can include the FX and DX models in their kit. While the Tokina lens reviews are a bit sparse here, Tokina's full line is comparably sparse also.
* Full text review not available at this time.
Tokina Lens Reviews (Discontinued)