Ok, My standard of practice is this. Prints for portraits, prints and CD for Weddings(I don't do weddings anymore) CD for event, and CD covers etc

Portraits, I can make more money using unit pricing, and after the initial proof viewing, I can keep my prices afordable, offer packages and hope that they will want to buy. The costs of printing at a good lab is reasonable if you ask for a discount for loyalty. A lot of places will offer you a loyalty card and believe me the price difference is big. You will factor your pricing into these costs anyway. I am reluctant to allow general clients to print their own photos for a number of reasons. Sales loss and if they get them printed at the local kmart or instant lab place, the quality will vary. You will not have control at what they are looking at. Not good for further business if people are seeing badly adjusted images on generic paper. I stipulate to my lab DO NOT adjust these images. My screen is professionally calabrated and I want my prints as is. The client could end up unhappy.

CD negatives are good back up, and excellent when you have to hand over large batches like bands and events. Photographing bands it is easier for them to print up the ones they want. Just make sure when you do give CD negatives, your contract stipulates no manipulations, filters, or alterations are allowed. Otherwise a lousy job could reflect on you as a photographer. It's great seeing your images on the front of a CD, it's embarrassing when the art work weakens your work and is almost unrecognisable.

CD jackets, photo books need high res files so it is easier to hand over as is on CD. Make sure you price your work per image, time and out of pocket expenses. Don't give away your hard work.

Lastly:If a client wanting portraits asks me for the negatives,I will give only the photos they have paid for (the ones I get printed) I determine how much I will lose out on in extra sales and factor a percentage. It just depends on what you think you are worth. If you under sell yourself, you will always atract this client base.
Please remember not to undercut the market. Photography these days isn't an exclusive career like it once was, but it's also not a free one. 
I hope this makes sense.

Thanks Neil,

Actually I was interested in your strobe work.

My lighting kit is studio fixed and while I know that people use speedlights etc for location work I hadn't really considered it as a set up like you have done. I am a member of strobists but never really persued it. I think it would be cheaper in the long run than a traditrional lighting kit to get out and about. So don't be suprised if I rack your brain on a couple of technical questions which I will do in the appropriate forum!

Anyways, glad to be here!

Steavie!

Hey,

Just wanted to say hello, introduce myself and hopefully get to know more people visiting here!

My name is Steavie, I am an event, portrait and jack of all trades photographer ;p

I love street photography, but don't get to do it as much as I would like these days. I love working in the studio when I am not on location!

Anyways, anyone, everyone say hello, and I look forward to getting to know you all!

HugZ
Steavie!