antibride's Chocolate wedding

I don't have an engagement ring. My intended and I have been together for three years, living together for two. We have two kids, a mortgage, a car payment, and we're both in career "transition". In short, the e-ring just seemed an unimportant extravagance so we're just going to skip to the wedding rings.

Mike is set on a wide, simple, platinum band for himself. Done. Easy.
I on the other hand... I have some ideas. I know I need my ring to be on the big side, (even chunky) white gold, (no platinum! Too $$$. I want all the bling I can afford!) and unusual. I'm entertaining the ideas of:
A. a large colored stone in a pave setting (one of our two birthstones - citrine or aquamarine)
B. a wide band w/ an offset channel
C. an unknown antique "find"

We're going ring shopping this weekend. My Mike knows "a guy" ( he has "a guy" for everything!) who's family owns a jewelery store so hopefully we'll get some good advice. We're also going to check out the antique market.

Very exciting!
Any opinions?

UPDATE:
This is definitely the one!!!
We went ring shopping this weekend, and my first instinct was the correct one. I tried this ring on and it's exactly what I want. I didn't even try any others on I liked it so much. What a relief to have that done and not have to worry (obsess!) about it!
Both my ring and Mike's ring are 7mm wide and about 2 mm thick, 14k white gold w/ a brushed finish.
My band has a TDW of 1.0 carat in diamonds. (More bling than I thought I was in for)
Got a super deal too!!!

UPDATE:
We have our rings! I love it and can totally see wearing it everyday forever! Pics to come!