Randy buy the Handi. You won't regret it.
I have two 30-30's that I put together using barrels I purchased from this forum, and can't say a bad word about either one. I tend to agree with Quick, when he said the 30-30 barrels are probably the best NEF barrels made, with IMHO the 45-70's next.
The only problem I've had with a Handi-rifles accuracy is with a 7mm-08, but I haven't had much time to play with it yet.
Most problems that you read about regarding the Handi's are usually with reloads. I'm not knocking reloads, as I also reload. If you stick with factory ammo, mostly likely you won't regret it. Then there is the bonus of being able to switch calibers. The only proviso regarding this is that if you plan on firing high pressure calibers in the future, you have to plan for it in advance. This means you have to purchase a rifle with an SB2 frame, then your good to go on just about all the calibers offered, by NEF.
Another bonus is that if you buy a Handi, you get to pick the brains of the Handi gurus on this forum (BTW I'm not one of them).
If you feel more comfortable with a Topper type slug gun, Gander Mtn, currently has the H&R Ultra slug hunter on sale in 12/20 Ga. for $179.99. (Online #GM420166, GM420167). Best of luck on whatever you choose.