Considering you own a pentax SLR (depending how basic the model) and assuming you're pretty familiar with controls - i'd say a 30D would suffice.
Don't bother with what other say about going round looking pro and stuff.
At the end of the day if you find that equipment is limiting you due to certain "trade offs" then i'd suggest getting the 30D - in the end - you'll find that you'll need some of the features in the future as you progress along.
The rest of the money - well - invest on lenes. (Invest in EFS if you know you'll never go FF) The EFS 17-55 IS or 17-40L is a good place to start off coupled with a Sigma EF500DG (more powerful than the 430EX and recycles faster).. whether you need the grip is another.
The batteries on the 30D run longer and easier to obtain (and swop around if you have friends using canon as the batteries are based on BP-511 series)
Don't bother with what other say about going round looking pro and stuff.
At the end of the day if you find that equipment is limiting you due to certain "trade offs" then i'd suggest getting the 30D - in the end - you'll find that you'll need some of the features in the future as you progress along.
The rest of the money - well - invest on lenes. (Invest in EFS if you know you'll never go FF) The EFS 17-55 IS or 17-40L is a good place to start off coupled with a Sigma EF500DG (more powerful than the 430EX and recycles faster).. whether you need the grip is another.
The batteries on the 30D run longer and easier to obtain (and swop around if you have friends using canon as the batteries are based on BP-511 series)