Welcome aboard!! The sky is the limit with augers and electronics. If you do go electronics, go with a flasher style either a vexilar or a marcum. Both are great products. Vexilar has been around for years and started the flasher industry, marcum makes a great product also.
As for augers, it depends on what type of fishing you will be doing. If your target is big pike, walleye or lake trout, get a 10" if not I like 8" I use a vexilar so there is plenty of room in my hole for the transducer as well as my line. They also make a wide array of 6-8" augers. Some electric, some propane, 4 stroke and 2 stroke. They are all pretty good. Most popular I would say would be an 8" propane jiffy, or the 6" ion electric. Lots of guys are also using cordless drill attachments also.
I fish all over the state in all conditions and my vexilar and jiffy propane are all I use.