Go with an electronic one, midway shooters supply has them from $20.00 up. I used a balance beam type one for years but they are so slow. I love mine I think I paid around $25.00 it is a hornady. You will hear you need to check the cheaper ones with a beam type, that is probably good advice however mine has been perfect for about five years and counting. Good luck and welcome to the game.
<blockquote><I>"You will hear you need to check the cheaper ones with a beam type..."</I></blockquote>Yup...if your digiscale costs under $500 you're gonna want to keep a beam balance handy to check it with. So why not just buy a decent beam balance and use it instead; no need to keep checking it because gravity hasn't changed in about a zillion years. And if you're that desperate to save the 10 second difference in speed between the two scales, maybe ya just ought to buy your ammo because you're in way too much of a hurry to be a careful reloader.
An electronic scale is great for doing spot checking and a BUNCH faster than a beam. I use a beam for rifle loading and a cheap PACT electronic for pretty much EVERYTHING else. Try sorting bullets using a beam scale. You'll pull your hair out!!! A electronic scale is plenty accurate for anything you'll ever load in a shotgun shell!
I like my digital RCBS, been using it for the better part of 5 years! Cost me around $100 as I recall, and sits nicely next to my used PW 800+. I like to weigh 1 shell in each box of 25, so you can imagine I am not a big fast production reloader, just one pull at a time on wintery Sunday afternoons.
3220, consider yourself commended for asking about a scale to start with. So many on here all they want to know what bushing to drop this or that powder right of the bat. The scale is a key to safety.
Starting out I would go with the RCBS 10-10 like others here have suggested. I believe Ohaus still makes these. The 5-0-5 is okay if you are on a budget but the 10-10 features magnetic dampening that gets you a quicker zero.
Digital is a step up in speed but you have to be sure to calibrate them, they are affected by the slightest draft, so you mouth-breathers beware.
I use an old Dillon digital with the lifetime warranty, sadly the ones they sell are made in China now and the warranty is short. Still good scales though.
I had a PACT BBK for my first digital. Good company, they made digitals for RCBS for a while. The BBK I had was a crappy scale. It went to Texas so often I thought about getting it a cowboy hat. The newer BBK II looks good but I would ask around.
My first scale was a Hornady beam scale which I still use for shotgun reloading and checking my RCBS 1500 Chargemaster scale and dispenser. The 1500 is accuarate to .1 of a gr but I still check it often. I also have a RCBS 5-0-5 beam scale I've never used..
For the most consistent accuracy I trust the Hornady beam scale the most.