I just committed the order.
Pentax K-5
Pentax smc DA 18-55mm f/3,5-5,6 AL WR
Pentax SMC DA 50-200mm f/4-5.6 ED WR
Pentax SMC DA 35mm f2.4 AL
All 1220£ (brand new of course)
I think that I will have 18-200 range with some quality and good at 35mm. If the zooms quality isn't enough I'll update for other zoom or primes.
For this price with WR (it will be useful)... I just bought...
What do you think?

Sorry, I wrote it while I was thinking and talking with people.

When I said f/4 is out it's because of indoor photos, the tamron it's f/2.8, what's a 1 f-stop difference. The lens that I need it will be for start, and maybe in the future I will have both, as a wide, telezoom, prime lens...
When I said "it's a lens for a beginner" I was referring that the lens I will choice will be for a beginner, for start with a dSLR.
Now maybe the best option for me is the Tamron 17-50 for it's price (now I can get it for 230£).

When I said f/4 is out I was thinking in interiors, it's 1 f-stop difference. It's a lens for beginner and I think in the future I will have both, as a wide and a telezoom lens.
But by now maybe the Tamron 17-50 is the best option, at least by her price (255£).

Thanks for all answers
The 17-70 and 16-45 are F4, so they are out.
I thought about Tamron 17-50 because I think it will cover 80% (maybe more) of my needs with this zoom range and the f/2,8. The Pentax 18-135 will give me extra range with WR (which is good) but I will sacrifice IQ.
I'm thinking to buy more lens in the future, but I would like to keep it "budget".

Right now I have a Canon G9 and I will buy my first SLR, Pentax K-5.
For a beginner what's best? A Tamron 17-50 f2.8 and keep $$ for a later lens or a Pentax 18-135mm?
Maybe other lens/combination?
My photography will be family in interiors and outdoor/landscape.

Hi,
Im new and I cant send PM, can you send me a PM with your email?
cheers

Hi,
Im new and I cant send PM, can you send me a PM with your email?
cheers