Nice to see you have a Tektronix 465 (transistors I think). I still have a Tektronix 545A (all tubes) It still works and at 700 watts it warms up my work room too. Never heard of the Rigol. Hope it work well.
The Rigol is a highly rated entry level digital scope:
Unfortunately my eBay purchase does not look promising (had my doubts as soon as I won the auction - price was too good). The seller has not shipped the item nor have they attempted to communicate any issues with shipping. I have tried contacting the seller through eBay asking for a tracking number and still no reply. Arrival date has elapsed and now I've begun the process of recouping my money. When done properly this shouldn't be a problem. For now, it looks as though I will have to put this scope back on the Wish List.