I'd have thought that fairly low for a K20...

I use hotshoe-flash-guns (YN560 & Viv285hv) and radio triggers (Cactus V4's)...

Portability is a big issue for me... I'd love a couple of elinchrom's or similar but I haven't the (regular) space to get the use from them and hotshoe flashes are simply more portable...
The fact they run on AA's is something I also find useful...

Strobist is a good first port of call...

As far as triggers on Pentax... Cactus V5's (from Gadget Infinity) are hard to beat...

My top tip is velcro...

My K5 was £530 used with 12month waranty from SRS... Sold my K-x (and 18-55) for £230 to a friend after seeing 3 go on the auction site for around £250...

If I'd have waited, chances are I'd have a K30 and still be chuffed to bits...

I bought a used K5 before the price drop and rebate on the K30...

In your shoes I'd go K30 too... And I don't think you'll regret it (despite the fact I love my K5) as the K30 is by all account one hell of a camera...

Used FA35... No question...

I find flickr is always slow on mondays.

I've always been more of a dog person... But Kenny is so ridiculous I've learned to love him... He's a real clown!

Tank (the female, yellow-footed tortoise) is just stupid though... No question... Just spent 20 minutes trying to get under the bookcase... Not a chance! Idiot!

And runs away from a tortoise... As well as being generally scared of shoes, hats and carrier bags...

I really like the look of the blue one...

I believe you can get the K-r in pink (if you're of that persuasion)

How a creature as truly stupid as a tortoise can live to be 100 is beyond me...

We're tortoise sitting at the moment...

Our cat is also quite dim...