K,10o 5 handed........what's right play here preflop?

[chekraze]

hooper has been solid and gibmamun very tight. other 2 are slightly passive and hardly raise.

***** Hand History for Game 2994965279 *****
150/300 Tourney Texas Hold'em Game Table (NL) (Tournament 17204514) - Mon Nov 07 00:29:56 EST 2005
Table Table 68154 (Real Money) -- Seat 7 is the button
Total number of players : 5
Seat 1: Hooper3411 (2785)
Seat 2: gibmamun (455)
Seat 5: hero(1156)
Seat 6: Russ1944 (1230)
Seat 7: hfrank6756 (2374)
Hooper3411 posts small blind (75)
gibmamun posts big blind (150)
** Dealing down cards **
Dealt to hero [ Kh, Td ]


these situations are a bit new to me and i find myself unsure.