There is the r4i-gold.eu, which is just the R4i-SDHC team again. Pretty much everyone is either r4ids or R4i-SDHC at this point.
There's really nothing gained from converting the R4i Gold Pro to an R4i-SDHC, outside of gaming access to the WiFi feature. Personally I won't recommend any of them for the reasons stated in my thread, that being that they are all literally the same cart. But if you really don't mind that fact, then I suggest the R4i Gold Pro (url: r4isdhc.com) give them as little money as possible. Otherwise I suggest the R4i Gold Plus from r4ids.cn.